EP1 - Episode 1 EP18 - Episode 18 EP84 - Nicollette Sheridan/The All-American Rejects EP85 - George Clooney/Kiefer Sutherland/T.I. EP90 - Amy Poehler, James Morrison EP91 - Joey Fatone, O.A.R. EP92 - Ted Danson, Ernie Bjorkman EP93 - Kevin Nealon, Chris Harrison EP94 - Alyson Hannigan, Brandon Wilson EP95 - Heidi Klum, Justin Long, Marco Borges EP96 - Josh Brolin, Pink with Butch Walker EP97 - Penelope Cruz, Dylan and Cole Sprouse, Q-Tip EP99 - Jennifer Aniston, Stevie Wonder EP100 - John Mayer, Josh Groban, Lady Antebellum, Chester Pitts, Ephraim Salaam EP101 - Amy Brenneman, Jason Mraz and Colbie Caillat EP102 - Mel B, Eric Dane, Robin Tunney, Melinda Doolittle EP103 - Steve Harvey, Kurt Warner, Dr. Neil Shaw EP104 - John Legend, Jerry O'Connell EP105 - Simon Baker, Miranda Cosgrove EP106 - The Jonas Brothers, Mel B EP107 - Naomi Watts, Lily Allen EP108 - Jeff Probst, Nick Carter EP109 - George Lopez, Bar Refaeli EP110 - Meredith Vieira, Olivia Wilde EP111 - Richard Simmons, Serena Williams, Raphael Saadiq EP112 - Denise Richards, Chyler Leigh, Fabio Viviani EP113 - Mario Lopez, the Bird and the Bee EP114 - David Arquette, Fall Out Boy EP115 - Neil Patrick Harris, Kaley Cuoco EP116 - Judge Judy Sheindlin, Bret Michaels, Matt Nathanson EP117 - Eric McCormack, Chris Harrison, Anthony LaPaglia, the Fray EP118 - "The Bachelor" runner-up Melissa Rycroft, Kym Douglas EP119 - Jason Mesnick and Molly Malaney, Steve Spangler EP120 - Paris Hilton EP121 - Carla Gugino, Sean "Diddy" Combs, Taylor Hicks EP122 - Carol Burnett, Taylor Hicks EP123 - Felicity Huffman, Rascal Flatts EP124 - Dwayne "The Rock" Johnson, Elle Fanning EP125 - Portia de Rossi, "American Idol" castoffs Jorge Nunez and Jasmine Murray EP126 - Julia Louis-Dreyfus, Andy Samberg EP127 - Zach Braff, Jenna Fischer EP128 - Anderson Cooper, Katy Perry EP129 - Paul Rudd, Gavin Rossdale, 7-year-old golfer Brett Sodetz EP130 - Noah Wyle, "American Idol" castoff Alexis Grace EP131 - Kara DioGuardi, M.C. Hammer EP132 - John Stamos, Emily Blunt EP133 - Jennifer Hudson EP134 - Reese Witherspoon, Bobby Flay EP135 - David Spade, Gilles Marini and Cheryl Burke EP136 - Halle Berry, Flo Rida EP137 - Christina Applegate, Keith Urban EP138 - Howie Mandel, Ben Mckenzie EP139 - Marilu Henner, Lil' Kim and Derek Hough, Martina McBride EP140 - Patricia Arquette, Wayne Hoffman, "Dancing With the Stars" castoff David Alan Grier, Rascal Flatts EP141 - Jenny McCarthy, Mary McCormack, Natasha Bedingfield EP142 - Zac Efron, Demi Lovato EP143 - Jessica Lange, Melissa Rycroft and Tony Dovolani, Ludacris and Jesse McCartney EP144 - Drew Barrymore, Barry Watson, the Pussycat Dolls EP145 - Leslie Mann, Rashida Jones, Pussycat Dolls EP146 - Jimmy Kimmel, Marilyn Milian, Brett Dennen, 7-year-old break-dancer Angelo Baligad EP147 - Jennifer Love Hewitt, Chicago EP148 - Lindsay Lohan, Alec Greven, Prince EP149 - Matthew Perry, Leighton Meester EP150 - Kristin Chenoweth, "American Idol" castoffs Anoop Desai and Lil Rounds EP151 - Kate Walsh, Dierks Bentley, child solar-system expert Brandt Bickford EP152 - Michael Douglas, Faryl Smith EP153 - Ryan Reynolds, 7-year-old piano prodigy Emily Bear EP154 - Matthew McConaughey EP155 - Heidi Klum, Annie Duke, "American Idol" castoff Matt Giraud EP156 - Simon Cowell, Zachary Quinto, the Black Eyed Peas EP157 - Hugh Jackman, Chris Pine EP158 - Vanessa Hudgens, 11-year-old sport stacker Steven Purugganan, Kym Douglas EP159 - Ryan Seacrest, Alison Sweeney EP160 - Jon Cryer, "American Idol" castoff Allison Iraheta, Alison Sweeney EP161 - Matthew Fox, Julianne Moore, Lady GaGa EP162 - Jay Leno, Ciara EP163 - Anderson Cooper, Kelly Clarkson EP164 - Ewan McGregor, the winner of "The Biggest Loser", Pink EP165 - Jamie Foxx, Marisa Miller, piano prodigy Umi Garrett EP166 - George Lopez, No Doubt EP167 - Ben Stiller, David Cook EP168 - Kevin Nealon, Tamar Geller, Michael Johns EP169 - Queen Latifah, Wayne Dyer, Rob Thomas EP170 - Steve Martin EP171 - Mandy Moore, Kris Allen EP172 - Jessica Biel, Kathy Freston, Kellie Pickler