Season 6

01 Episode 1 Episode 18th September 2008 02 Episode 18 Episode 181st October 2008 03 Nicollette Sheridan/The All-American Rejects Episode 8416th January 2009 04 George Clooney/Kiefer Sutherland/T.I. Episode 8519th January 2009 05 Amy Poehler, James Morrison Episode 9026th January 2009 06 Joey Fatone, O.A.R. Episode 9127th January 2009 07 Ted Danson, Ernie Bjorkman Episode 9228th January 2009 08 Kevin Nealon, Chris Harrison Episode 9329th January 2009 09 Alyson Hannigan, Brandon Wilson Episode 9430th January 2009 10 Heidi Klum, Justin Long, Marco Borges Episode 952nd February 2009 11 Josh Brolin, Pink with Butch Walker Episode 963rd February 2009 12 Penelope Cruz, Dylan and Cole Sprouse, Q-Tip Episode 974th February 2009 13 Jennifer Aniston, Stevie Wonder Episode 996th February 2009 14 John Mayer, Josh Groban, Lady Antebellum, Chester Pitts, Ephraim Salaam Episode 1009th February 2009 15 Amy Brenneman, Jason Mraz and Colbie Caillat Episode 10110th February 2009 16 Mel B, Eric Dane, Robin Tunney, Melinda Doolittle Episode 10211th February 2009 17 Steve Harvey, Kurt Warner, Dr. Neil Shaw Episode 10312th February 2009 18 John Legend, Jerry O'Connell Episode 10413th February 2009 19 Simon Baker, Miranda Cosgrove Episode 10516th February 2009 20 The Jonas Brothers, Mel B Episode 10617th February 2009 21 Naomi Watts, Lily Allen Episode 10718th February 2009 22 Jeff Probst, Nick Carter Episode 10819th February 2009 23 George Lopez, Bar Refaeli Episode 10920th February 2009 24 Meredith Vieira, Olivia Wilde Episode 11023rd February 2009 25 Richard Simmons, Serena Williams, Raphael Saadiq Episode 11124th February 2009 26 Denise Richards, Chyler Leigh, Fabio Viviani Episode 11225th February 2009 27 Mario Lopez, the Bird and the Bee Episode 11326th February 2009 28 David Arquette, Fall Out Boy Episode 11427th February 2009 29 Neil Patrick Harris, Kaley Cuoco Episode 1152nd March 2009 30 Judge Judy Sheindlin, Bret Michaels, Matt Nathanson Episode 1163rd March 2009 31 Eric McCormack, Chris Harrison, Anthony LaPaglia, the Fray Episode 1174th March 2009 32 "The Bachelor" runner-up Melissa Rycroft, Kym Douglas Episode 1185th March 2009 33 Jason Mesnick and Molly Malaney, Steve Spangler Episode 1196th March 2009 34 Paris Hilton Episode 1209th March 2009 35 Carla Gugino, Sean "Diddy" Combs, Taylor Hicks Episode 12110th March 2009 36 Carol Burnett, Taylor Hicks Episode 12211th March 2009 37 Felicity Huffman, Rascal Flatts Episode 12312th March 2009 38 Dwayne "The Rock" Johnson, Elle Fanning Episode 12413th March 2009 39 Portia de Rossi, "American Idol" castoffs Jorge Nunez and Jasmine Murray Episode 12516th March 2009 40 Julia Louis-Dreyfus, Andy Samberg Episode 12617th March 2009 41 Zach Braff, Jenna Fischer Episode 12718th March 2009 42 Anderson Cooper, Katy Perry Episode 12819th March 2009 43 Paul Rudd, Gavin Rossdale, 7-year-old golfer Brett Sodetz Episode 12920th March 2009 44 Noah Wyle, "American Idol" castoff Alexis Grace Episode 13023rd March 2009 45 Kara DioGuardi, M.C. Hammer Episode 13124th March 2009 46 John Stamos, Emily Blunt Episode 13225th March 2009 47 Jennifer Hudson Episode 13326th March 2009 48 Reese Witherspoon, Bobby Flay Episode 13427th March 2009 49 David Spade, Gilles Marini and Cheryl Burke Episode 13530th March 2009 50 Halle Berry, Flo Rida Episode 13631st March 2009 51 Christina Applegate, Keith Urban Episode 1371st April 2009 52 Howie Mandel, Ben McKenzie Episode 1382nd April 2009 53 Marilu Henner, Lil' Kim and Derek Hough, Martina McBride Episode 1393rd April 2009 54 Patricia Arquette, Wayne Hoffman, "Dancing With the Stars" castoff David Alan Grier, Rascal Flatts Episode 14013th April 2009 55 Jenny McCarthy, Mary McCormack, Natasha Bedingfield Episode 14114th April 2009 56 Zac Efron, Demi Lovato Episode 14215th April 2009 57 Jessica Lange, Melissa Rycroft and Tony Dovolani, Ludacris and Jesse McCartney Episode 14316th April 2009 58 Drew Barrymore, Barry Watson, the Pussycat Dolls Episode 14417th April 2009 59 Leslie Mann, Rashida Jones, Pussycat Dolls Episode 14520th April 2009 60 Jimmy Kimmel, Marilyn Milian, Brett Dennen, 7-year-old break-dancer Angelo Baligad Episode 14621st April 2009 61 Jennifer Love Hewitt, Chicago Episode 14722nd April 2009 62 Lindsay Lohan, Alec Greven, Prince Episode 14823rd April 2009 63 Matthew Perry, Leighton Meester Episode 14924th April 2009 64 Kristin Chenoweth, "American Idol" castoffs Anoop Desai and Lil Rounds Episode 15027th April 2009 65 Kate Walsh, Dierks Bentley, child solar-system expert Brandt Bickford Episode 15128th April 2009 66 Michael Douglas, Faryl Smith Episode 15229th April 2009 67 Ryan Reynolds, 7-year-old piano prodigy Emily Bear Episode 15330th April 2009 68 Matthew McConaughey Episode 1541st May 2009 69 Heidi Klum, Annie Duke, "American Idol" castoff Matt Giraud Episode 1554th May 2009 70 Simon Cowell, Zachary Quinto, the Black Eyed Peas Episode 1565th May 2009 71 Hugh Jackman, Chris Pine Episode 1576th May 2009 72 Vanessa Hudgens, 11-year-old sport stacker Steven Purugganan, Kym Douglas Episode 1587th May 2009 73 Ryan Seacrest, Alison Sweeney Episode 1598th May 2009 74 Jon Cryer, "American Idol" castoff Allison Iraheta, Alison Sweeney Episode 16011th May 2009 75 Matthew Fox, Julianne Moore, Lady GaGa Episode 16112th May 2009 76 Jay Leno, Ciara Episode 16213th May 2009 77 Anderson Cooper, Kelly Clarkson Episode 16314th May 2009 78 Ewan McGregor, the winner of "The Biggest Loser", Pink Episode 16415th May 2009 79 Jamie Foxx, Marisa Miller, piano prodigy Umi Garrett Episode 16518th May 2009 80 George Lopez, No Doubt Episode 16619th May 2009 81 Ben Stiller, David Cook Episode 16720th May 2009 82 Kevin Nealon, Tamar Geller, Michael Johns Episode 16821st May 2009 83 Queen Latifah, Wayne Dyer, Rob Thomas Episode 16922nd May 2009 84 Steve Martin Episode 17025th May 2009 85 Mandy Moore, Kris Allen Episode 17126th May 2009 86 Jessica Biel, Kathy Freston, Kellie Pickler Episode 1725th June 2009