The talent show's fourth season opens with preliminary auditions taped in theaters across the country. Nick Cannon is the new host, replacing Jerry Springer. David Hasselhoff, Sharon Osbourne and Piers Morgan return as the judges.

The judges travel to Miami for the first time in AGT audition history, in hopes of finding the next million-dollar act.

The coast-to-coast auditions continue as the judges search for the next million-dollar act.

The judges continue their search for the next million dollar act.

The judges continue their coast-to-coast search for the next big thing.

The judges continue their coast-to-coast search for the next big thing.

Auditions are now being held in New York City. Will the judges like what they see?

Performance showcases are featured in the eighth audition installment.

Performance showcases are featured in the ninth audition installment.

Performance showcases are featured in the 10th and final audition installment.

In the first "Vegas Verdicts" edition, winning acts from the preliminary auditions advance to Las Vegas in the hope of securing a coveted position in the Top 40, with the judges debating their show-biz fate.

In the second "Vegas Verdicts" installment, the judges debate the fates of the hopeful contestants to determine the Top 40 acts.

Ten of the Top 40 acts showcase their talents in the first performance edition.

The first five winning acts are selected for the Top 20 in a results edition. Mariah Carey performs, as does ventriloquist and Season 2 winner Terry Fator.

Ten acts from the Top 40 take to the stage in the second performance installment.

Five winning acts are selected to the coveted Top 20 in a results edition. Electro hip-hop duo LMFAO and comic illusionists Penn and Teller perform.

The third performance episode showcases 10 acts from the Top 40.

Five acts win a slot in the sought-after Top 20 in a results show. Daughtry and Ashley Tisdale perform.

The Top 40 acts have been narrowed to 10 and are featured in the fourth performance show.

Five final acts win a position in the Top 20 in a results show.

The semifinals kick off with the first 10 acts from the Top 20 taking the stage.

Four acts are selected to advance to the finals in a results edition. David Hasselhoff performs, as do the Muppets' Kermit the Frog and Miss Piggy.

Ten semifinal acts from the Top 20 perform.

A results edition reveals five winning acts. Members of the stage show "Jersey Boys"---a musical depicting the life of the pop group Frankie Valli and the Four Seasons---perform a medley of tunes from the show.

The final performance episode features the 10 finalists in showcases.

The winning act is revealed in the Season 4 finale. The victor scores $1 million. Performers include "Britain's Got Talent" phenom Susan Boyle; pop songstress Shakira; English singer Leona Lewis; country's Rascal Flatts; and Cirque du Soleil.

The talent contest opens its fifth season with open auditions in Los Angeles.

Open auditions are held in Dallas.

Season 5's open auditions continue.

Preliminary auditions continue.

Open auditions continue.

Open auditions continue.

Disparate acts are featured in continuing preliminary auditions.

Preliminary auditions continue.

Season 5's preliminary auditions continue.

Auditions continue.

Contestants perform for the judges in Las Vegas in hopes of making it into the top 48.

The stress spikes when judges Sharon Osbourne, Howie Mandel and Piers Morgan deliberate over which acts to select for a spot in the Top 48.

Performance showcases in Los Angeles kick off with 12 acts from the Top 48 taking the stage.

Four winning acts are selected for the sought-after Top 24 in a results edition.

Twelve acts from the Top 48 showcase their talents in the second week of performance shows.

Four acts advance to the Top 24 in a results installment. Cirque du Soleil perform the show "Kà," and the rock band Train sing "Hey, Soul Sister."

Twelve acts perform in the third week of showcases.

Four acts win a slot in the Top 24 in a results show. Singer-songwriter Mike Posner and hip-hop dance troupe JabbaWockeeZ perform.

Twelve acts from the Top 48 take the stage in the fourth week of performance showcases.

Four acts advance to the Top 24 in a results edition. Rocker Bret Michaels and British singer-songwriter Taio Cruz perform.

Twelve acts from YouTube perform in Hollywood.

Four acts from YouTube advance to the semifinal round.

Twelve previously eliminated acts return to the contest and perform in a wild-card round.

Four wild-card acts advance to the semifinal round. Country songstress LeAnn Rimes and illusionist Criss Angel perform.

The semifinal round begins with 12 acts performing in a bid to break into the Top 10.

Five semifinal contestants win a position in the Top 10 in a results show. Jimmy Fallon and singer Kylie Minogue perform.

The semifinal round continues with 12 acts performing.

Five winning acts advance to the Top 10.

The Top 10 acts perform in Hollywood in their quest to win a sought-after position in the final four. Enrique Iglesias performs "I Like It."

The final four acts are revealed. Sarah McLachlan sings "Forgiveness" and the cast of the stage show "American Idiot" performs.

In Season 5's penultimate episode, the remaining four acts perform in Hollywood for the final time.

The winning act is revealed in the Season 5 finale, which features performances by an array of Las Vegas and Hollywood stars.

Host Nick Cannon and all your favorite judges are back for the thrilling sixth season of AGT! Auditions begin in Los Angeles, CA and Atlanta, GA

AGT visits Seattle to find some incredibly talented (and not so talented) performers!

AGT visits Houston where a flurry of death-defying acts blow the judges away!

Watch what happens when one of the judges can't make it to the Minneapolis auditions in time!

AGT returns to Seattle to find some incredibly talented (and not so talented) performers!

AGT revisits Atlanta and encounters some incredible talent!

AGT visits New York City in search of incredible talent!

AGT travels to New York in search of some buzz-worthy contestants!

AGT contestants compete to see who'll make it all the way to Vegas!

The last group of auditions determines who will go to Vegas!

Las Vegas Week - Day 1

The Vegas auditions begin as contestants compete to go to Hollywood!

Las Vegas Week - Day 2

The Vegas auditions conclude as the judges get ready for Hollywood!

the very first live performances in Hollywood!

Watch the very first results show live from Hollywood! Avril Lavigne and the cast of "Priscilla Queen of the Desert" perform!

Watch the next 12 acts perform in Hollywood!

Four acts advance to the Top 24 in a results edition.

Watch the next 12 performers compete in Hollywood!

Watch the results show to find out who moves on to the semi-finals!

Watch the next 12 acts perform!

Check out the results show!

Watch the YouTube contestants perform on AGT!

It's time for the YouTube acts to check the Results!

Twelve previously eliminated acts get a second chance to compete.

Four wildcard acts move on to the semifinals.

The Semi-Finals begin. Performing for America's votes: West Springfield Dance Team; Daniel Joseph Baker; Matt Wilhelm; Kevin Collis; Miami All-Stars, Lys Agnes; Zuma Zuma; Beth Ann Robinson; Melissa Villasenor; Sandou Trio Russian Bar; Poplyfe; Team iLuminate.

Ten spots available for the next round, who will get the first five tonight? America's voting results are revealed for: West Springfield Dance Team; Daniel Joseph Baker; Matt Wilhelm; Kevin Collis; Miami All-Stars, Lys Agnes; Zuma Zuma; Beth Ann Robinson; Melissa Villasenor; Sandou Trio Russian Bar; Poplyfe; Team iLuminate.

Five spots remain. Who will take them? Performing tonight; The Kinetic King; Fatally Unique; Landon Swank; Gymkana; Summerwind Skippers; Snap Boogie; Anna Graceman; Steven Retchless; Smage Bros. Riding Shows; Professor Splash; Landau Eugene Murphy, Jr.; and Silhouettes.

Five spots remain. The results of America's votes are revealed for The Kinetic King; Fatally Unique; Landon Swank; Gymkana; Summerwind Skippers; Snap Boogie; Anna Graceman; Steven Retchless; Smage Bros. Riding Shows; Professor Splash; Landau Eugene Murphy, Jr.; and Silhouettes.

The fight for the finals begins. Featuring Miami All-Stars; Lys Agnes; Landon Swank; Anna Graceman; Silhouettes; Smage Bros. Riding Shows; Poplyfe; West Springfield Dance Team; Landau Eugene Murphy, Jr.; Team iLuminate.

Only four will survive to go on to the finals, who will it be? America's votes decide the fate of Miami All-Stars; Lys Agnes; Landon Swank; Anna Graceman; Silhouettes; Smage Bros. Riding Shows; Poplyfe; West Springfield Dance Team; Landau Eugene Murphy, Jr.; Team iLuminate.

Months of work come down to this final night, the top four perform to determine who will be the winner of Season 6 of America's Got Talent. Silhouttes, Poplyfe, Team iLuminate and Landau Eugene Murphy, Jr. compete for the last time.

Season 6 of America's Got Talent comes to a close and it is time to announce the winner. Will it be Silhouttes or Poplyfe or Team iLuminate or Landau Eugene Murphy, Jr.?

Auditions in St. Louis.

Auditions are held in San Francisco.

Auditions are held in New York City.

Auditions continue in New York City.

Auditions are held in Tampa.

Auditions in Tampa, Florida, continue.

Austin is the backdrop for auditions.

Auditions continue in Austin.

Auditions are held in Tampa.

The Final auditions are held.

Acts compete for a position in the Top 48. From Las Vegas.

Acts compete for a position in the Top 48. From Las Vegas.

The top 48 contestants are revealed.

AGT kicks off with a Red Carpet Special in New York before the Top 48 contestants compete for the million-dollar prize.

Four acts advance to the Top 24 in a results episode.

12 of the top 48 acts perform. Four acts advance to the Top 24 in a results episode.

Four winning acts advance to the Top 24.

Twelve of the Top 48 acts perform.

Twelve of the top 48 acts perform.

Four of the top 12 acts advance to the next round.

12 of the top 48 acts perform for the judges.

Four acts move on to the top 24.

12 YouTube acts perform for the judges.

4 of the 12 YouTube acts to the semi-finals.

12 previously eliminated acts return for a 2nd chance to advance to the next round.

4 of the 12 Wild Card acts advance to the semi-finals.

12 of the top 48 acts perform for the judges.

3 of the 12 acts advance to the finals.

12 of the 48 acts perform for the judges.

3 of the 12 acts advance to the finals.

The top 6 acts perform for the judges.

The top 6 acts perform for the judges.

Hopefuls audition for the judges in New York, Los Angeles and San Antonio.

Howie, Howard, Heidi and Mel B continue their quest to discover America's most talented act in San Antonio, Texas and New Orleans.

Hopefuls perform for the judges.

Auditions continue.

Auditions continue in San Antonio and Chicago.

The judges cover three cities in their epic quest to discover America's next great talent.

The last chance for performers to audition for their chance to go to Las Vegas.

Hopefuls audition for the judges in Las Vegas.

We don't have an overview translated in English. Help us expand our database by adding one.

The finalists head to Radio City Music Hall in New York City to prove that they're the rightful heirs to AGT's million-dollar prize.

After a night of amazing performances, the contestants gather to find out who's moving on to the Semifinals and who's headed home. Labrinth and Emeli Sandé perform.

The second week of live performances from Radio City Music Hall.

Four acts from the previous night's performance show will be chosen as America's favorites and move on to the semi-final round to continue their pursuit of the one million dollar prize. Labrinth and Emeli Sandé perform.

Twelve new performers take the stage to battle for a spot in the semifinals.

Twelve performers took the stage last night, but only four will make it through tonight's eliminations to move on to the semifinals.

Twelve talented acts take the stage to battle it out for a spot in the semifinals.

The votes are in and only four acts from the previous night's performance show move on to the semi-final round of competition.

It's the last night of quarterfinals! Twelve acts perform tonight, but only four will receive a pass to next week's semifinals.

Twelve performers took the stage last night, but only four will make it through tonight's eliminations to move on to the semifinals.

Welcome to the first week of semifinals! Twelve semifinalists battle it out for a spot in the finals.

Twelve performers took the stage last night, but only six can move on to the finals for a chance at AGT's $1 million prize.

It's the second week of semifinals! The final twelve semifinalists take the stage for a shot at the finals and the million-dollar prize.

The final 12 semifinalists performed last night. Tonight, only six will move on to the finals, one step closer to AGT's million-dollar prize.

Welcome to the AGT finals, live from Radio City Music Hall. Twelve talented finalists take the stage to battle it out for the million-dollar prize.

Twelve talented acts took to the stage last night, but after tonight only six will move one step closer to next week's million-dollar finale.

Welcome to the final night of performances from Radio City! The six talented finalists are ready to give it their all for one last shot at AGT's million-dollar prize. Featuring special performances from Josh Groban, Luke Bryan, Icona Pop, and Il Divo with Heather Headley.

Welcome to the AGT Season 8 finale! Six talented finalists gave it their all last night, and tonight one talented performer will be crowned the million-dollar winner.

Wannabes try out in America's entertainment capitals, New York City and Los Angeles. This season introduces the Golden Buzzer. In the surprise of the night Nick fools the judges.

Nick, Howie, Heidi, Mel B and Howard continue their quest for America's most talented performers.

Hopefuls perform for the judges.

Hopefuls perform for the judges.

The 5th group of potential contestants performs for the judges tonight hoping to be selected to move on in the competition. This very Special Sunday edition of AGT we will see attempts to break 2 Death-defying Guinness World Records!

On the last night of auditions, Nick and the judges scour the country for the most talented performers in America.

A best-of look at the auditions is featured. Included: previously unseen interviews and behind-the-scenes footage.

Acts compete at Judgment Week in New York City for a spot in the live shows.

Judgment Week continues; the Top 48 acts are revealed.

Twelve of the top 48 acts perform in hope of earning America's vote.

After a performance recap, the first five acts advance to the semifinals.

Twelve hungry acts take the Radio City stage to compete for America's vote during Week 2 of the America's Got Talent quarterfinals.

After a performance recap, five more acts advance to the semifinals.

The third group of twelve acts perform live.

After a performance recap, five more acts advance to the semifinals.

The forth (and final) group of twelve acts perform live.

Twelve acts perform for the judges in hope of advancing to the next round and getting one step closer to the $1 million prize.

With only 24 acts left, competition for the million-dollar prize heats up.

The results of America's vote is revealed and six acts advance to the next round.

The last 12 semifinalists compete for the million-dollar prize.

Six acts advance to the next level.

The top 12 acts give it everything they have for America's votes and a shot at next week's finals.

The final six acts are revealed.

The final six acts perform one final time.

In a live, star-studded season finale, the Top 6 learn who is the winner of the million-dollar prize and a headlining act in Las Vegas.

Nick, Howie, Howard, Mel B and Heidi embark on the nationwide search for the most talented act in America.

Week 2 of the auditions jumps into hyperdrive as Nick and the judges continue their search for the million-dollar act.

Nick and the judges scour the country during Week 3 of the America's Got Talent auditions.

Season 10 kicks into high gear as AGT's most extreme acts vie for the million-dollar prize.

We don't have an overview translated in English. Help us expand our database by adding one.

The nationwide search for talent continues as Nick and the judges witness some of AGT's most incredible auditions yet.

It's the last chance for talent to make the grade before AGT narrows the field during the judges' cuts.

Howard invites Neil Patrick Harris to guest judge during Week 1 of the Judge Cuts to help determine which acts will go to the live rounds.

Heidi calls up Grammy Award winner Michael Bublé to guest judge during Week 2 of the Judge Cuts to help determine which acts will go to the live rounds.

See all the best performances and most impressive acts from Season 10 of America's Got Talent.

Howie taps Marlon Wayans to guest judge for Week 3 of the Judge Cuts to help determine which acts will go to the live rounds.

See all the memorable moments from the last 10 seasons of America's Got Talent, from the weird and wonderful to the truly awesome and inspirational. Revisit 10 years of talent featuring past winners, special moments, favorite performances and commentary from our judges and host, including interviews with current stars Howard Stern, Heidi Klum, Howie Mandel and Nick Cannon.

Mel B brings back Piers Morgan to guest judge during the final week of Judge Cuts.

Nick Cannon hosts a celebration of the most successful worldwide TV format in history, as the most memorable "Got Talent" moments from around the globe provide jaw-dropping displays of talent. From danger acts, child prodigies, incredible dancers, shockingly trained animals and amazing talents that defy categorization, World's Got Talent truly has it all.

AGT goes live for the first time this season, showcasing 12 amazing acts giving their best for America's votes and a place in the semifinals.

Nick Cannon reveals the first vote results, then America and the judges make on-the-spot saves. Season 9 winner Mat Franco performs.

Twelve more performers go all out for America's votes and a chance at the semifinals.

Last night's top vote-getters are announced, then two acts from remaining seven are saved on the spot. AGT alums Emily West and William Close perform.

The remaining 12 acts perform live, looking to win America's votes and a spot in the semifinals.

The final seven acts for the semifinals are announced - including two who are saved from elimination on the spot. Guest performance from Le Rêve-The Dream.

Eleven acts take the stage, looking for America's votes and a trip to the AGT finals.

The first batch of five finalists is revealed, including two acts saved on the spot; The Illusionists perform.

The final 12 acts of the top 24 perform for the judges.

Five acts advance to the finals, rounding out the top 10; Little Mix performs; acrobatic gymnasts AcroArmy perform.

The contestants from the top 10 acts compete for the last time, and hope to win the competition and the $1 million prize; a special performance from Flo Rida and The Rockettes.

Exciting surprises and highlights of the final performances; the Season 10 winner is revealed; performances by special guests include Rachel Platten, Penn & Teller, Yolanda Adams and the Harlem Gospel Choir, Terry Fator, Freelusion and Mat Franco.

The auditions begin with creator and executive producer Simon Cowell at the judges table alongside Heidi Klum, Mel B, Howie Mandel, and host, Nick Cannon. The Golden Buzzer is back and allows four lucky acts the chance to go directly to the live performance rounds at the Dolby Theatre in Los Angeles to compete for America's vote.

The laughs, cries and gasps continue as more incredible and incredibly wacky acts take the stage in the hopes of making it to the next round.

More emotional, jaw-dropping and hilarious acts give their all for the judges. Another performance garners a coveted Golden Buzzer.

Simon, Howie, Heidi and Mel B judge another round of awe-inspiring acts - and the notoriously tough Simon finally uses his Golden Buzzer!

The fun never stops as the judges see a new slew of diverse and inspiring talents.

The auditions continue.

Nick Cannon hosts a special recap of the moments that left America speechless during the auditions. Never before seen footage is also revealed as we get ready to head into the judge cuts.

Superstar Ne-Yo joins America's Got Talent as a guest judge for the first round of Judge Cuts.

Country superstar Reba McEntire joins America's Got Talent as a guest judge for the second round of Judge Cuts.

The judges push their favorite acts through to the top 36. Guest judge George Lopez takes control of the Golden Buzzer.

The fun and surprises keep coming on the final night of Judge Cuts before the live shows. Louis Tomlinson of One Direction joins as a guest judge.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

The first 11 of the remaining 21 acts perform for a chance to win $1 million and be named the most talented act in America.

Only 5 of the previous night's performers will move on to the Finals. Tonight, viewers will have one last chance to send their favorite act to the Finals by using Google Instant Save. Featuring special guest performances and hosted by Nick Cannon.

The last 11 of the remaining 22 acts perform for a chance to win $1 million and be named the most talented act in America.

Only 5 of the previous night's performers will move on to the Finals.

The top 10 acts compete one last time live at the Dolby Theatre for a chance to win the $1 million prize and be voted the most talented act in America

Host Nick Cannon reveals who America chose as the $1 million winner. This 2-hour season finale will feature special guest performers and not-to-be-missed surprises.