In the season premiere, Christina Aguilera returns to battle Blake Shelton, Adam Levine and Pharrell Williams to land the best singers in the blind auditions.

Shut out in the premiere, Adam Levine competes with Blake, Pharrell and Christina to land the best new artists on his team.

The artists continue their blind auditions – and the coaches continue to fight it out to land the best of them.

As the coaches' teams start to fill up, a new slate of aspiring artists goes all out in their blind auditions.

A look back at highlight moments on each coach's team - and a sneak peek of the battles to come.

The coaches fill their last slots - and then match up their artists in elimination duets.

The artists face off in head-to-head duets, looking to be saved or stolen into the next round of competition.

More artists face off in do-or-die duets, hoping to be saved – or stolen – for a trip to the knockout round.

The coaches stage their final battle matchups, looking to trim their teams to only the artists with a chance to win it all.

The strongest vocalists choose a song to perform as they compete head-to-head in hope of advancing to the next round.

The vocalists each select a song to perform as they compete head-to-head in hope of advancing to the next round.

The knockout round continues with team members selecting their own songs to perform individually.

Top moments from Season 8 are revisited. Included: previously unseen footage of the coaches.

The remaining top 20 artists perform.

The remaining top 20 artists perform.

Results are revealed; the top two performers from each team move through to the live shows.

The top 12 artists perform live in front of coaches Adam Levine, Blake Shelton, Christina Aguilera and Pharrell Williams for America's vote.

America will vote to eliminate two artists and the remaining 10 will move on to the next phase of the competition.

The top 10 artists perform live in front of coaches Adam Levine, Blake Shelton, Christina Aguilera and Pharrell Williams for America's vote.

America's votes will be revealed to determine which two artists will be eliminated from the competition.

The top 8 artists perform live for America's votes.

America's votes will be revealed to determine which two artists will be eliminated from the competition.

The top 6 artists perform live for America's votes.

America will vote to eliminate one artist and the remaining five will continue in the competition.

The top five artists perform live in front of coaches Adam Levine, Blake Shelton, Christina Aguilera and Pharrell Williams for America's votes.

America will vote to determine which four of the final five artists will compete in the Live Finals. Adam Levine, Blake Shelton, Christina Aguilera and Pharrell Williams serve as coaches and Carson Daly hosts.

The four remaining vocalists perform in hope of advancing to the finale.

Carson Daly reveals the winner of the competition.