Episode 680 (Se 35 Ep 22) – Alec Baldwin/Tom Petty&Heartbreakers

Live from New York, it's... Bill Hader! Sketches include "BP, Transocean, and Halliburton," "Great Day" (Digital Short), "Arizona Evenings," "Hudson Valley High School Swim Team," "Belinda's Birthday Cookout," "Preniva," "Grady Wilson's Intimate & International," "Timecrowave," "Whistle If You Can," and "Scout Sniper School." Tom Petty & the Heartbreakers performed "I Should Have Known It" and "Jefferson Jericho Blues."

Episode 679 (Se 35 Ep 21) – Betty White/Jay-Z

Live from New York, it's... Betty White, Rachel Dratch, Tina Fey, Ana Gastayer, Amy Poehler, Maya Rudolph, and Molly Shannon! Sketches include "The Lawrence Welk Show," "MacGruber" (three parts), "Delicious Dish," "The Manuel Ortiz Show," "Gingey," "Scared Straight," "CSI: Sarasota," "Thank You For Being a Friend" (Digital Short), and "2010 Census Taker." Jay-Z performed a melody of "Real As It Gets," "99 Problems," "Empire State of Mind" (feat. Bridget Kelly), and "Young Forever" (feat. Mr Hudson).

Episode 678 (Se 35 Ep 20) – Gabourey Sidibe/MGMT

Live from New York, it's... Fred Armisen! Sketches include "Obama's Financial Reforms," "The Suze Orman Show," "Who Wants To Be a Millionaire?," "Mrs. Johnson," "Cherry Battle" (Digital Short), "I Did It In My Style," "2010 Public Employee of the Year Awards," "Alarm Clocks and More," and "A Conversation with Gabourey Sidibe." MGMT performed "Flash Delirium" and "Brian Eno."

Episode 677 (Se 35 Ep 19) – Ryan Phillippe/Ke$ha

Live from New York, it's... Fred Armisen! Sketches include "Larry King Live," "Broadview Security," "Today Sponge Women's Weightlifting Championship 1986," "Hip Hop Kids," "The Other Guy" (Digital Short), "Mort Mort Feingold," "Shake Weight Commercial DVD," "Breakfast at Tiffany's," "Teen Talk," "I Got This!," and "Underground Rock Minute." Ke$ha performed "Tik Tok" and "Your Love is My Drug."

Special – In The 2000s Time and Again

A compilation of SNL 2000s, Time and Again!

Episode 676 (Se 35 Ep 18) – Tina Fey/Justin Bieber

Live from New York, it's... Fred Armisen! Sketches include "The 2010 Census," "Brownie Husband," "The 2010 Masters," "The Sarah Palin Network," "Lonely Teacher's Thoughts," "Al Roker's Ruff, Rugged, and Roker," "Rancho San Joaquin Spring Dance," and "Loleen the Nine-Inch Hooker." Justin Bieber performed "Baby" and "U Smile."

Episode 675 (Se 35 Ep 17) – Jude Law/Pearl Jam

Live from New York, it's... Bobby Moynihan! Sketches include "Eric Massa's Exit Interview," "Ford," "Secret Word," "Broadview Security," "Spanish Serial Killer," "Boombox" (Digital Short), "The Twilight Zone," "Hamlet Auditions," "Kickspit Underground Rock Festival," "Elinda Naid," and "Talk Show with Ravish." Pearl Jam performed "Just Breathe" and "Unthought Known."

Episode 674 (Se 35 Ep 16) – Zach Galifianakis/Vampire Weekend

Live from New York, it's... Fred Armisen! Sketches include "Health Care Reform is Unpopular," "Grandpa Vogelchek's Funeral," "Executive Suite Bidet," "Zach Drops By The Set" (film), "Today," "What Up With That?," "The Situation Room," and "Pageant Talk." Vampire Weekend performed "Cousins" and "Giving Up The Gun."

Episode 673 (Se 35 Ep 15) – Jennifer Lopez

Live from New York, it's... Kenan Thompson! Sketches include "We Are The World III," "Gyne-Lotrimin Ladies' World Cup of Curling 1987," "Flags of the World" (Digital Short), "Hollywood Dish," "Telemundo Olympics Coverage," "Undercover Celebrity Boss," "Besos Y Lagrimas," "Copy Room Flirtation," "Smash Mouth," "Car Horns and More," and "Closet Organizer." Jennifer Lopez performed "Alive" and "I'm In Love."

Episode 672 (Se 35 Ep 14) – Ashton Kutcher/Them Crooked Vultures

Live from New York, it's... Kristen Wiig! Sketches include "On The Record with Greta Van Susteren," "Gertie's Will," "The View," "Cialis for Threeways," "Grapes," "What is Burn Notice?" "Access Hollywood," "An Even-Tempered Apology from White House Chief of Staff Rahm Emanuel," and "Cadena-Norton Wedding." Them Crooked Vultures (Josh Homme, Dave Grohl, and John Paul Jones) performed "Mind Eraser, No Chaser" and "New Fang."