Episode 650 (Se 34 Ep 14) – Steve Martin/Jason Mraz

Live from New York, it's... Fred Armisen!
Sketches include "Obama's Plan for the Economy," "Chewable Pampers," "MacGruber" (three parts), "Socially Awkward Officemates," "Laser Cats 4Ever!" (Digital Short), "Issues," "Bernie Madoff's Super Bowl Party," "Steve Backstage," "Tiffany's Makeup Counter," and "Forefathers of the Game" (film).
Jason Mraz performed "I'm Yours" and "Lucky" (featuring Colbie Caillat); Steve Martin performed "Late for School."

Episode 649 (Se 34 Ep 13) – Rosario Dawson/Fleet Foxes

Live from New York, it's... Kristen Wiig!
Sketches include "ABC News Special," "North American Savings," "Da' Learnin' Train," "Gitmo Clearance Sale," "Aladdin and Jasmine's 10th Anniversary," "A Couple of Homies" (Digital Short), "Gilly," "La Policia Mexicana," "The View," and "Good Excuse!"
Fleet Foxes performed "Mykonos" and "Blue Ridge Mountains."

Episode 648 (Se 34 Ep 12) – Neil Patrick Harris/Taylor Swift

Live from New York, it's... Abby Elliott!
Sketches include "The Rachel Maddow Show," "Today," "Curtains for Broadway?," "Penelope in Group Therapy," "The Doogie Howser Orchestra" (Digital Short), "Two First Names," "Air Traffic Control," "Frost/Other People," and "Whopper Virgins."
Taylor Swift performed "Love Story" and "Forever & Always."

Episode 647 (Se 34 Ep 11) – Hugh Laurie/Kanye West

Live from New York, it's... Jason Sudeikis!
Sketches include "Blagojevich Testimony," "Bronx Beat," "Sarcastic Christmas Dinner," "Culhane Wedding Toasts," "Magical Lamps," "Cat Christmas Letter," and "Cookie Crimes" (Digital Short).
Kayne West performed "Love Lockdown" and "Heartless."

Episode 646 (Se 34 Ep 10) – John Malkovich/T.I.

Live from New York, it's... Darrell Hammond and Amy Poehler!
Sketches include "Secretary Clinton," "Gas Right," "Sexy Shannon," "Obama Keeps It Cool" (film), "La Rivista Della Televisione," "Virgania Horsen's Pony Express" (Digital Short), "Calculators," "The Lost Works of Judy Blume," "Jizz In My Pants" (Digital Short), and "J'Accuzzi."
T.I. performed "Whatever You Like" and "Swing Ya Rag" (featuring Swizz Beatz).

Episode 645 (Se 34 Ep 9) – Tim McGraw/Ludacris, T-Pain

Live from New York, it's... Fred Armisen!
Sketches include "The Big Three Automakers," "Clear Rite," "Dateline NBC," "Turkey Chase," "Live Another Death," "Blizzard Man," "Jeff Montgomery," "Dale Britches' Down-Home Phony Phone Calls," and "Mark Payne."
Ludacris and T-Pain performed "One More Drink" and "Chopped & Screwed."

Episode 644 (Se 34 Ep 8) – Paul Rudd/Beyonce

Live from New York, it's... Jason Sudeikis!
Sketches include "Vice President-Elect Joe Biden," "Sproingo," "Kissing Family," "Scared Straight," "Everyone's a Critic" (Digital Short), "Tom and Tonya Peoples," "Garden Party Road Trip," "Beyonce Video Shoot," "Suicide Negotiation," "Proposition 8," and "Clearing the Air" (film).
Beyonce performed "If I Were a Boy" and "Single Ladies."

Episode 643 (Se 34 Ep 7) – Ben Affleck/David Cook

Live from New York, it's... Senator John McCain!
Sketches include "McCain/Palin on QVC," "Jar Glove," "The View," "Countdown with Keith Olbermann," "Target Greatland," "The Staten Island Zoo," "Night School Musical," "Grady Wilson's Marriage Techniques," "The Zolesky Brothers," and "Bierhoff Brothers."
David Cook performed "Light On" and "Declaration."

Episode 642 (Se 34 Ep 6) – Jon Hamm/Coldplay

Live from New York, it's... Jason Sudeikis!
Sketches include "Biden and Murtha," "Pedophile Trick-or-Treater," "Ras-Trent" (Digital Short), "Two A-Holes at an Ad Agency in the 1960s," "The Barack Obama Variety Half-Hour," "Don Draper's Guide to Picking Up Women" (film), "Vincent Price's Halloween Special," "Jon Hamm's John Ham," and "Pat Finger."
Coldplay performed "Viva la Vida," "Lost," "Yellow," and the first five seconds of "Lovers in Japan."

Episode 641 (Se 34 Ep 5) – Josh Brolin/Adele

Live from New York, it's... Gov. Sarah Palin!
Sketches include "Palin on Palin," "MacGruber" (three parts), "Sue and the Engagement," "The Suze Orman Show," "Mark and Andy Backstage," "I'm No Angel," "Fart Face," "Narc School," "ReadiTrade.com," "New York Underground" (film), and "Fall Foliage."
Adele performed "Chasing Pavements" and "Cold Shoulder."