Host Amy Poehler; Katy Perry performs.

Host Bryan Cranston; Kanye West performs.

Live from New York, it's... Nasim Pedrad! Sketches include "Ask Gloria Allred," "Damn It, My Mom Is On Facebook Filter," "Gilly on Glee," "The New Boyfriend Talk Show," "O'Donnell 2010," "Secret Word," "In a Field" (Digital Short), "Macy's," "The Suze Orman Show," "NBC Sunday Night Football," and "Tax Masters." Bruno Mars performed "Just The Way You Are" and "Grenade."

Live from New York, it's... Paul Brittain! Sketches include "Harry Reid Rally," "Baby Spanx," "Dream Home Extreme," "WXPD 9 News," "Sign My Cast" (Digital Short), "The View," "Wrangler Open Fly Jeans," "Les Jeunes de Paris," "My Brother Knows Everything," "Ed Vincent's Sex Symposium," and "Googie Rene's Halloween Partially Damaged Discount Basement." Kings of Leon performed "Radioactive" and "The Immortals."

Live from New York, it's... Jason Sudeikis! Sketches include "Biden's Midterm Analysis," "Ronnie & Clyde" (Digital Short), "Vincent Price's Halloween Special, 1960," "Back To The Future Screen Tests" (two parts), "Lynette's Audition," "I Didn't Ask For This," "Highway Cops," "Darlique & Barney," and "American America: Dog in Purse" (cartoon). Rihanna performed "What's My Name" and "Only Girl (in the World)."

Scarlett Johansson - Arcade Fire

Host Anne Hathaway; Florence and the Machine performs.

Robert De Niro hosts. Music guest: Diddy-Dirty Money

Live from New York, it's... Fred Armisen! Sketches include "Obama's Stockholm Syndrome," "Feline Culinary Creations," "A Vogelcheck Christmas," "What's That Name?," "Stumbin'" (Digital Short), "Julian Assange in Prison," "Sexually Speaking," "High School Holiday Jam," "Meryl Streep on Ice," and "Broadway Cares." Paul McCartney performed "Jet," "Band on the Run," "A Day in the Life," "Give Peace a Chance," and "Get Back."

Live from New York, it's... Kenan Thompson! Sketches include "Christmas Eve in Washington, DC," "Mark Zuckerberg and Julian Assange," "The Miley Cyrus Show," "I Just Had Sex" (Digital Short), "Larry King Live," "Crunkmas Karnival," "This, You Call a Wonderful Life?!," "Jeff'd," "Tunstall General Store," and "A Holiday Message from The Kardashians." Eminem and Lil' Wayne performed "No Love," "Love The Way You Lie," and "Right Above It."

Actor Jim Carrey hosts with a musical performance by The Black Keys

Host Gwyneth Paltrow; Cee Lo Green performs.

Jesse Eisenberg-Nicki Minaj

Live from New York, it's... Dana Carvey and Mike Myers! Sketches include "Wayne's World," "i-SleepPRO," "Church Chat," "Celebrity Teen Crisis Center," "The Roommate" (film), "Live with Regis and Kelly," "Little Miss Little Girl Pageant," "Deidra Wurtz," and "Fingerlings." Linkin Park performed "Waiting for the End" and "When They Come For Me."

Russell Brand-Chris Brown

Miley Cyrus-The Strokes

Zach Galifianakis returns as host with musical guest: Jessie J.

Elton John is the host. John also performs with music guest Leon Russell

Live from New York, it's... Fred Armisen! Sketches include "Everyone's Unhappy," "Mort Mort Feingold," "Helen's Breasts" (Digital Short), "Fox & Friends," "Mary Shelley's Landlord," "The Best of Both Worlds," "Crunk-A** Easter Festival," "The Roosevelts," "Perspectives Photo Studios," and "Bongo's Clown Room." Foo Fighters performed "Rope" and "Dear Rosemary."

Saturday Night Live Season 36 Episode 20

Host Justin Timberlake; Lady Gaga performs.

Live from New York, it's... Jason Sudeikis! Sketches include "The Situation Room," "Corn Syrup Producers of America," "What up with that?," "The Ambiguously Gay Duo: The Dark, Clenched Hole of Evil," (cartoon/film) "Wild World," "One-Take Tony," "Ann-Margret Tries To Throw A Wad Of Paper Into A Trashcan," and "A Republican Candidate." Paul Simon performs "Rewrite" and "So Beautiful Or So What.