Episode 1
Faith Hill, Robin Roberts in New York City
Eric Dane, Paula Deen, beatboxer Butterscotch
George Lopez, Jeff Corwin, Jeff Lewis and Jenni Pulos of "Flipping Out"
Daniel Radcliffe, Harvey Levin, Sabra Johnson
Kathy Griffin, 5-year-old golfer Kyle Lograsso
Magician Hans Klok and Pamela Anderson
Neil Patrick Harris, Rihanna
Kanye West, Mariska Hargitay
Wentworth Miller, Terry Fator
Howie Mandel, Tori Spelling, Dean McDermott, Rascal Flatts
Brad Garrett, Sophia Wise, Mike Klinge, Amy Schumer
Jessica Alba, Gary Vaynerchuk
Masi Oka, Steve Spangler, KT Tunstall
David Spade, Jane Seymour, Tony Dovolani, 90-year-old newlyweds August and Roberta Mahan Offer
Taye Diggs, Bryan Gaynor, James Blunt
Greg Kinnear, Paul Potts, Kat Von D
T.R. Knight, human jumper Chris Bryant
Ben Stiller, Will.i.am, hip hop violinist Paul Dateh
Queen Latifah, 7-year-old race car driver Hunter Stewart
Denis Leary, Dylan and Cole Sprouse, Kenna, Chris Bryant
Jamie Foxx, 6-year-old piano prodigy Emily Bear
Tom Selleck, Nathan Fillion, high school band leader Darrell Watson
Sharon Osbourne, "Are You Smarter Than a 5th Grader?" kids, Jill Scott
Mel B, Maksim Chmerkovskiy, Shawn Johnson, Matchbox Twenty
Kate Walsh, Jack McBrayer, Pat Monahan
Kate Hudson, Rita Wilson, Kristin Chenoweth
Dana Carvey, Miley Cyrus, Billy Ray Cyrus
Jerry O'Connell, Malin Akerman, Gretchen Wilson
Ellen’s house, Chef Gordon Ramsay, Jennifer Connelly
Drew Carey, Angie Stone, "Jon & Kate Plus 8"'s Gosselin Family
Janet Jackson, Nicolai Calabria, Ballou High School Marching Band, Laura Bush
Jake Gyllenhaal, Marc Cohn
Reese Witherspoon
Sir Anthony Hopkins, Nicole Scherzinger, "Price Is Right" contestant Marie Fodale
Steve Carell, pilot Bob Robertson, Kid Rock
Halle Berry, the Jonas Brothers, Greg Grunberg
Barack Obama, Sabrina Bryan, Mark Ballas
Larry Himmel, Amy Brenneman
Jennifer Love Hewitt, bat expert Rob Mies, Hans Klok
Tornado survivors, Victoria Beckham, Steve Spangler
Kid inventors, Josh Duhamel
5-year-old Graham Berger Sacks, Russell Crowe, Carrie Underwood
Jenny McCarthy, Keith Urban
Kid inventors, Hayden Panettiere, Lyle Lovett and His Large Band
Vince Vaughn
James Denton, Jennie Garth, Derek Hough, Chris Brown
Heidi Klum, Sean Casey, singing Taco Bell employee Donnie Lamar Harden
Celine Dion, Will.i.am
Maroon 5
Dwayne "The Rock" Johnson, James Taylor
Christina Applegate, Bobb'e J. Thompson, Backstreet Boys, 700th Show
Jeff Corwin, Soulja Boy Tell 'Em
Mariah Carey, Duran Duran
Helio Castroneves, Julianne Hough, piano prodigy Emily Bear
Tom Brokaw, Joey Fatone, Logan Smalley, Darius Weems
Anderson Cooper, Howie Mandel, Derek Martinez, Deanna Pappas
Paris Hilton, Derek Martinez
Rocco DiSpirito, Jordin Sparks
Jack Black, Josh Brolin, Ingrid Marie Rivera, Keith Urban, Brad Womack
OneRepublic, Dakota Blue Richards, Vanessa Williams
Bryan Dattilo, Snoop Dogg, David Frei
Jenna Bush, Ryan Shaw
Toby Keith, Keira Knightley
Paula Deen, Anthony Gargiula, Trisha Yearwood
Bonnie Brown, Chace Crawford, Allison Janney
Padma Lakshmi, Blake Lewis
Vince Mira, Alison Sweeney
Tippi Hedren, Alec Mapa
David Gray, Ty Pennington
Chris Bryant, Jeff Lewis, Jane Seymour
Colbie Caillat, Carmen Electra, Neil Tejwani
Ricki Lake, Charice Pempengco, Wolfgang Puck, Andrew Zuckerman
Jason Randal, Ashley Tisdale
Bill Germanakos, Maria Sharapova
Scott Baio, Kym Douglas, Marc Yu
Emily Bear, Tim Gunn, Ellen Page
John Legend, Nic Puehse, Tristan Puehse, Ivana Trump, Janice Wolf
Mary J. Blige, Anthony Gargiula
Cody McCasland
Maria Bartiromo, Plain White T's
Jimmy Kimmel, Holly Kiser, Michael McDowell
David Beckham, Ashlee Simpson
