Live From New York, it's...Chris Parnell

Sketches include: Gore's Lawsuit, Wade Blasingame: Dog Lawyer, Behind The Music, Palm Beach, Veronica and Co., Seasons Greetings From SNL, Doing Voices, The Tyson Bros., and Corn Chip Nails (from the Rob Lowe/Eminem and Dido episode)

U2 performs: ""Beautiful Day"" and ""Elevation""

Live From New York, it's...Darrell Hammond

Sketches include: CNN Press Conference, Trucker Talk, Beaver Ranch Brothel, Hardball, Black Paramedics, Noony and Nuni, and The Not So Great Adventures of the Down and Out Dollar

Live from New York, it's... Fred Armisen!

Sketches include "Gadhafi's Second Speech," "Bladdivon," "Flight Attendants," "Russian Brides," "SWAT Commander" (Digital Short), "Grady Wilson's Burning Up The Bedsheets," "Live Lounge," "Biker Chick Chat," "Megan's Roommate" (Digital Short), and "Your Mom Talks to Megan Fox While You Get Ready."

U2 performed "Breathe," "Moment of Surrender," and "Ultraviolet (Light My Way)."

Saoirse Ronan hosts with musical guest U2.