Episodes
- 112008-09-08
Episode 1
- 18182008-10-01
Episode 18
- 84842009-01-16
Nicollette Sheridan/The All-American Rejects
- 85852009-01-19
George Clooney/Kiefer Sutherland/T.I.
- 90902009-01-26
Amy Poehler, James Morrison
- 91912009-01-27
Joey Fatone, O.A.R.
- 92922009-01-28
Ted Danson, Ernie Bjorkman
- 93932009-01-29
Kevin Nealon, Chris Harrison
- 94942009-01-30
Alyson Hannigan, Brandon Wilson
- 95952009-02-02
Heidi Klum, Justin Long, Marco Borges
- 96962009-02-03
Josh Brolin, Pink with Butch Walker
- 97972009-02-04
Penelope Cruz, Dylan and Cole Sprouse, Q-Tip
- 99992009-02-06
Jennifer Aniston, Stevie Wonder
- 1001002009-02-09
John Mayer, Josh Groban, Lady Antebellum, Chester Pitts, Ephraim Salaam
- 1011012009-02-10
Amy Brenneman, Jason Mraz and Colbie Caillat
- 1021022009-02-11
Mel B, Eric Dane, Robin Tunney, Melinda Doolittle
- 1031032009-02-12
Steve Harvey, Kurt Warner, Dr. Neil Shaw
- 1041042009-02-13
John Legend, Jerry O'Connell
- 1051052009-02-16
Simon Baker, Miranda Cosgrove
- 1061062009-02-17
The Jonas Brothers, Mel B
- 1071072009-02-18
Naomi Watts, Lily Allen
- 1081082009-02-19
Jeff Probst, Nick Carter
- 1091092009-02-20
George Lopez, Bar Refaeli
- 1101102009-02-23
Meredith Vieira, Olivia Wilde
- 1111112009-02-24
Richard Simmons, Serena Williams, Raphael Saadiq
- 1121122009-02-25
Denise Richards, Chyler Leigh, Fabio Viviani
- 1131132009-02-26
Mario Lopez, the Bird and the Bee
- 1141142009-02-27
David Arquette, Fall Out Boy
- 1151152009-03-02
Neil Patrick Harris, Kaley Cuoco
- 1161162009-03-03
Judge Judy Sheindlin, Bret Michaels, Matt Nathanson
- 1171172009-03-04
Eric McCormack, Chris Harrison, Anthony LaPaglia, the Fray
- 1181182009-03-05
"The Bachelor" runner-up Melissa Rycroft, Kym Douglas
- 1191192009-03-06
Jason Mesnick and Molly Malaney, Steve Spangler
- 1201202009-03-09
Paris Hilton
- 1211212009-03-10
Carla Gugino, Sean "Diddy" Combs, Taylor Hicks
- 1221222009-03-11
Carol Burnett, Taylor Hicks
- 1231232009-03-12
Felicity Huffman, Rascal Flatts
- 1241242009-03-13
Dwayne "The Rock" Johnson, Elle Fanning
- 1251252009-03-16
Portia de Rossi, "American Idol" castoffs Jorge Nunez and Jasmine Murray
- 1261262009-03-17
Julia Louis-Dreyfus, Andy Samberg
- 1271272009-03-18
Zach Braff, Jenna Fischer
- 1281282009-03-19
Anderson Cooper, Katy Perry
- 1291292009-03-20
Paul Rudd, Gavin Rossdale, 7-year-old golfer Brett Sodetz
- 1301302009-03-23
Noah Wyle, "American Idol" castoff Alexis Grace
- 1311312009-03-24
Kara DioGuardi, M.C. Hammer
- 1321322009-03-25
John Stamos, Emily Blunt
- 1331332009-03-26
Jennifer Hudson
- 1341342009-03-27
Reese Witherspoon, Bobby Flay
- 1351352009-03-30
David Spade, Gilles Marini and Cheryl Burke
- 1361362009-03-31
Halle Berry, Flo Rida
- 1371372009-04-01
Christina Applegate, Keith Urban
- 1381382009-04-02
Howie Mandel, Ben McKenzie
- 1391392009-04-03
Marilu Henner, Lil' Kim and Derek Hough, Martina McBride
- 1401402009-04-13
Patricia Arquette, Wayne Hoffman, "Dancing With the Stars" castoff David Alan Grier, Rascal Flatts
- 1411412009-04-14
Jenny McCarthy, Mary McCormack, Natasha Bedingfield
- 1421422009-04-15
Zac Efron, Demi Lovato
- 1431432009-04-16
Jessica Lange, Melissa Rycroft and Tony Dovolani, Ludacris and Jesse McCartney
- 1441442009-04-17
Drew Barrymore, Barry Watson, the Pussycat Dolls
- 1451452009-04-20
Leslie Mann, Rashida Jones, Pussycat Dolls
- 1461462009-04-21
Jimmy Kimmel, Marilyn Milian, Brett Dennen, 7-year-old break-dancer Angelo Baligad
- 1471472009-04-22
Jennifer Love Hewitt, Chicago
- 1481482009-04-23
Lindsay Lohan, Alec Greven, Prince
- 1491492009-04-24
Matthew Perry, Leighton Meester
- 1501502009-04-27
Kristin Chenoweth, "American Idol" castoffs Anoop Desai and Lil Rounds
- 1511512009-04-28
Kate Walsh, Dierks Bentley, child solar-system expert Brandt Bickford
- 1521522009-04-29
Michael Douglas, Faryl Smith
- 1531532009-04-30
Ryan Reynolds, 7-year-old piano prodigy Emily Bear
- 1541542009-05-01
Matthew McConaughey
- 1551552009-05-04
Heidi Klum, Annie Duke, "American Idol" castoff Matt Giraud
- 1561562009-05-05
Simon Cowell, Zachary Quinto, the Black Eyed Peas
- 1571572009-05-06
Hugh Jackman, Chris Pine
- 1581582009-05-07
Vanessa Hudgens, 11-year-old sport stacker Steven Purugganan, Kym Douglas
- 1591592009-05-08
Ryan Seacrest, Alison Sweeney
- 1601602009-05-11
Jon Cryer, "American Idol" castoff Allison Iraheta, Alison Sweeney
- 1611612009-05-12
Matthew Fox, Julianne Moore, Lady GaGa
- 1621622009-05-13
Jay Leno, Ciara
- 1631632009-05-14
Anderson Cooper, Kelly Clarkson
- 1641642009-05-15
Ewan McGregor, the winner of "The Biggest Loser", Pink
- 1651652009-05-18
Jamie Foxx, Marisa Miller, piano prodigy Umi Garrett
- 1661662009-05-19
George Lopez, No Doubt
- 1671672009-05-20
Ben Stiller, David Cook
- 1681682009-05-21
Kevin Nealon, Tamar Geller, Michael Johns
- 1691692009-05-22
Queen Latifah, Wayne Dyer, Rob Thomas
- 1701702009-05-25
Steve Martin
- 1711712009-05-26
Mandy Moore, Kris Allen
- 1721722009-06-05
Jessica Biel, Kathy Freston, Kellie Pickler
