Episode 604 (Se 31 Ep 19) – Kevin Spacey/Nelly Furtado

Live from New York, its... Rachel Dratch!
Sketches include "Anderson Cooper 360," "A-holes at a Crime Scene," "Oprah's Legends Ball," "Carol!," "Fun with Real Audio" (cartoon), "Kevin and Andy Backstage," "The Falconer," "Andy Walking" (film), "Lord Phillip Sarc," and "I Do Not Agree With Many of This Administration's Policies."
Nelly Furtado performs "Promiscuous" (featuring Timbaland) and "Maneater."

Episode 603 (Se 31 Ep 18) – Julia Louis-Dreyfus/Paul Simon

Live from New York, its... Al Gore!
Sketches include "Parallel Universe Address from President Gore", "Techpack," "Horny Homeless Guy," "The Morning Show," "MySpace", "Charades," "Unsolved Mysteries: The Sandy Patterson Story," and "Peyote" (film).
Paul Simon performed "How Can You Live In the Northeast?" and "Outrageous."

Episode 602 (Se 31 Ep 17) – Tom Hanks/Red Hot Chili Peppers

Live from New York, its... Will Forte!
Sketches include "Bill Frist's Gas Plan," "Wheel of Fortune," "Kaitlin and the Iguana," "Ariell & Ephraim" (film), "Ma!," "Claremont Yoga Center," "Colin's Place," and "Country Club Tennis."
Red Hot Chili Peppers performed "Dani California" and "Give It Away."

Episode 601 (Se 31 Ep 16) – Lindsay Lohan/Pearl Jam

Live from New York, it's... Lindsay Lohan!
Sketches include "The Situation Room," "Neutrogena Coin Slot," "Deep House Dish," "Journey to the Disney Vaults" (cartoon), "The O'Reilly Factor," "Le Rendezvous," "Laser Cats!" (film), "Debbie Downer," "Officemates' Night Out," and "Atlantic City Fever."
Pearl Jam performed "World Wide Suicide" and "Severed Hand."

Episode 600 (Se 31 Ep 15) – Antonio Banderas/Mary J. Blige

Live from New York (for the 600th time), its... Seth Meyers!
Sketches include "Anderson Cooper 360," "Basic Instinct 2: Return of the Beaver," "Deal or No Deal," "Automated-Phone Lady," "Besos y Lagrimas," "13th Annual Women's Basketball Coaches Fashion Awards," "Zorro's Body Double," "Rascals' Karoake," "Immigrants Backstage," and "Wine Snobs."
Mary J. Blige performs "Be Without You" and "Enough Crying."

Episode 599 (Se 31 Ep 14) – Matt Dillon/Arctic Monkeys

Live from New York, it's... Rachel Dratch, Finesse Mitchell, Chris Parnell, Paula Pell, Amy Poehler, Maya Rudolph, and Kristen Wiig!
Sketches include "Spring Break '06," "prisonmate.net," "SportsCenter," "Lookalikes"(film), "Two A-Holes at a Travel Agency," "How to Order Sushi Like a CEO," "Joplin: Alive! Podcast," "Vincent Price's St. Patrick Day's Special," "Inner Harmony Relaxation Tape," "Appalachian Emergency Room," and "Decicco Brothers Unicornery."
The Arctic Monkeys performed "I Bet You Look Good on the Dance Floor" and "A Certain Romance."

Episode 598 (Se 31 Ep 13) – Natalie Portman/Fall Out Boy

Live from New York, it's... Darrell Hammond!
Sketches include "Bush Responds to Criticism," "Nelson's Baby Toupees," "Jamba Juice," "Larry King Live," "The Couple That Should Be Divorced," "Belated Black History Moment" (cartoon), "Art Dealers and the College Boyfriend," "Sheldon's Bar Mitzvah," "The Real Natalie" (film), and "RAD 3000."
Fall Out Boy performed "Dance Dance" and "Sugar, We're Going Down."

Episode 597 (Se 31 Ep 12) – Steve Martin/Prince

Filmed in New York, it's... Steve Martin!
Sketches include "The Sabotage of Baldwin" (film), "Teddy Bear Holding a Heart," "Oprah," "Don't Buy Stuff You Cannot Afford," "Hamas Party," "Close Talkers" (film), "Quick Zoom Theater," "Super Bowl XL Rehearsals," "Backstage: Steve, Alec and Lorne," "The Prince Show," "State of the Galaxy 2145," "The Tangent" (film), "Surfer Club," and "Naturally Crafting."
Prince performed "Fury (A Woman Scorned)" and "Beautiful Loved, and Blessed" featuring Tamar.

Episode 596 (Se 31 Ep 11) – Peter Sarsgaard/The Strokes

Live from New York, it's... Seth Meyers!
Sketches include "Anderson Cooper 360," "Nelson's Baby Toupees," "Target Greatland," "National Pirate Convention," "Carol!," "Young Chuck Norris" (film), "Cat Fancy," "Gays in Space," "Fairmount Suites Inn," "NSA Wiretap," and "Peter Sarsgaard's SARS-guards."
The Strokes performed "Juicebox" and "You Only Live Once."

Episode 595 (Se 31 Ep 10) – Scarlett Johansson/Death Cab For Cutie

Live from New York, it's... the voice of Robert Smigel!
Sketches include "The 700 Gang" (cartoon), "Taco Town," "Deep House Dish," "Smorgabord," "Darwin" (cartoon), "Mike and Toni's Chandelier Galaxy," "Live Duluth," "My Super Sweet 16," "Once in a Lifetime Jewelers," "The Kuril-Khamchatka Trench," and "Mr. Willoughby."
Death Cab for Cutie performed "Soul Meets Body" and "Crooked Teeth."