Season 6

Guest Stars:

Rich Eisen, Al Sharpton

Guest Stars:

Scott Baio, Kathy Griffin

Guest Stars:

Ivanka Trump, Blake Lewis, Jay Thomas

Guest Stars:

Lupe Fiasco, Slash, Santeri Ojala

Guest Stars:

Hannah Teter, Wyclef Jean, Jay Leno

Guest Stars:

Ice Cube, Carrie Ann Inaba

Guest Stars:

David Alan Grier

Guest Stars:

Jordin Sparks

Guest Stars:

Bruno Tonioli

Guest Stars:

Gene Simmons

Guest Stars:

Kellie Pickler

Guest Stars:

Marilu Henner

Guest Stars:

Heidi Montag, Jose Canseco

Guest Stars:

Adam Carolla, Shane Barbi

Guest Stars:

Niki Taylor, Hulk Hogan

Guest Stars:

Sarah Silverman

Guest Stars:

Bobby Brown, Adam Levine

Guest Stars:

Richard Branson, Anthony Jeselnik

Guest Stars:

Johnathan Rice, Rebecca Mader, Tom Green

Guest Stars:

Brandon Hardesty, Natasha Henstridge, Ben Stein

Guest Stars:

Tommy Kendall, Johnny Knoxville

Guest Stars:

Colbie Caillat, Maura Tierney, Sam Champion

Guest Stars:

Guillermo Rodriguez, Mary J. Blige, Ben Affleck, Matt Damon, Frank Potenza

Guest Stars:

Mary J. Blige, Missy Higgins

Guest Stars:

Heidi Klum, Michael Thomas, Michael Paget, Matthew Tuck

Guest Stars:

Judy Greer, Martin Lawrence

Guest Stars:

Janet Jackson, Jackie Mason

Guest Stars:

Joel McHale, Anne Heche

Guest Stars:

Woody Harrelson

Guest Stars:

Camilla Belle

Guest Stars:

Naomi Watts, James Blake

Guest Stars:

Adam Carolla, Sheryl Crow

Guest Stars:

Tori Spelling

Guest Stars:

Fat Joe, Djimon Hounsou

Guest Stars:

Sofía Vergara

Guest Stars:

Jim Sturgess, Don Rickles

Guest Stars:

Serj Tankian, Kate Bosworth

Guest Stars:

Randy Jackson

Guest Stars:

Eva Longoria, Kid Rock, Richard Simmons

Guest Stars:

Artie Lange

Guest Stars:

Adam Carolla

Guest Stars:

Tom Arnold, Bret Michaels

Guest Stars:

Nicollette Sheridan

Guest Stars:

Keanu Reeves, Leona Lewis

Guest Stars:

America Ferrera

Guest Stars:

Minnie Driver, Milo Ventimiglia

Guest Stars:

Charles Barkley, Judd Apatow

Guest Stars:

Jean Smart

Guest Stars:

Marilu Henner, Neil Patrick Harris

Guest Stars:

Vanessa Williams

Guest Stars:

Angie Harmon

Guest Stars:

John Cho

Guest Stars:

Carlton Cuse, Estelle, Damon Lindelof, Terrence Howard

Guest Stars:

Robert Downey Jr.

Guest Stars:

Mario Batali, Christina Ricci

Guest Stars:

Isabella Rossellini, Ashton Kutcher

Guest Stars:

Alex Trebek, Kelsey Grammer

Guest Stars:

Ben Barnes, Evangeline Lilly, Joe Jackson

Guest Stars:

Josh Holloway, Dierks Bentley, Brad Leland

Guest Stars:

Ryan Seacrest, Clay Aiken

Guest Stars:

Matthew Fox

Guest Stars:

Josh Groban

Guest Stars:

Neil Diamond, Shia LaBeouf

Guest Stars:

Dennis Hopper

Guest Stars:

Usher

Guest Stars:

DeAnna Pappas, Kevin Nealon

Guest Stars:

Emmanuelle Chriqui, Seann William Scott

Guest Stars:

Josh Peck

Guest Stars:

John Leguizamo

Guest Stars:

Dwayne Johnson

Guest Stars:

John McCain, Mike Myers, Kate Walsh

Guest Stars:

Jewel

Guest Stars:

Sharon Osbourne, Regis Philbin, Lil Wayne

Guest Stars:

Billy Idol, Romany Malco, Peter Berg

Guest Stars:

Fred Willard, Whoopi Goldberg, Cyndi Lauper

Guest Stars:

Guillermo del Toro, Charlize Theron

Guest Stars:

Andy Samberg, Minnie Driver, Shwayze

Guest Stars:

Gabrielle Union, Nas, Nick Lachey

Guest Stars:

Maggie Gyllenhaal, Ant, Declan Donnelly

Guest Stars:

Jesse Ventura, Seth Green

Guest Stars:

George Foreman, Alanis Morissette

Guest Stars:

Amy Weaver

Guest Stars:

Jesse Ventura

Guest Stars:

Wendy Liebman, Katharine McPhee

Guest Stars:

Mariah Carey

Guest Stars:

Catherine Bell

Guest Stars:

Brandon T. Jackson, Tyga, Rosie Perez

Guest Stars:

Tommy Lee, James Franco

Guest Stars:

Don Rickles

Guest Stars:

Don Cheadle, Emma Stone

Guest Stars:

Lauren Conrad

Guest Stars:

Jo Frost

Guest Stars:

Christina Hendricks, Young Jeezy, Russell Brand

Guest Stars:

Aaron Eckhart

Guest Stars:

LeBron James

Guest Stars:

Kobe Bryant

Guest Stars:

Kerry Washington

Guest Stars:

Stephen Merchant

Guest Stars:

January Jones

Guest Stars:

Cole Sprouse

Guest Stars:

Sandra Oh

Guest Stars:

Gavin Rossdale, Rosario Dawson

Guest Stars:

Jennifer Hudson

Guest Stars:

Jessie Baylin, Amaury Nolasco

Guest Stars:

Jonny Lee Miller

Guest Stars:

Lady Gaga

Guest Stars:

Shea Whigham

Guest Stars:

Corbin Bleu, Seth Rogen

Guest Stars:

T.I.

Guest Stars:

Nicollette Sheridan

Guest Stars:

Jordana Brewster, Peter Krause

Guest Stars:

Sean Hayes, John Legend

Guest Stars:

Bridget Regan, Samuel L. Jackson

Guest Stars:

Jesse Metcalfe

Guest Stars:

Joshua Jackson

Guest Stars:

Dave Annable, Julia Louis-Dreyfus, Julianne Hough

Guest Stars:

Olga Kurylenko, Daniel Craig

Guest Stars:

Candace Bushnell