Described by comedy peer Lewis Black as the "funniest woman in America", the winner of the American Comedy Award for Best Female Comedian is a triple threat; as well as her sell-out tours, Madigan is a favorite on late-night talk shows and nationally syndicated radio shows. With an enviable career spanning three decades on the comedy circuit, she has the distinction of being one of few comics to appear on every major late-night show including Leno, Letterman, Conan, and Ferguson.

David Sedaris is a Grammy Award-nominated humorist, writer, comedian, bestselling author, and radio contributor. Much of his humor is drawn from his unconventional North Carolina upbringing, his varied stream of odd-jobs (Christmas elf at Macy's, anyone?) and plays to his self-deprecating strengths, and now often concerns his life today in France with his partner.

She's a Mexican Native-American actress, comedienne, and former NFL cheerleader (yes, really!). Perhaps it's this varied career path that makes it so easy for Anjelah Johnson to slip into different comedy roles - the most notable being disgruntled fast food worker Bon Qui Qui. Comedy meets music in the able hands of the MadTV alumnus Johnson.

Master improvisers Brad Sherwood and Colin Mochrie have been stunning audiences for decades with their appearances on Whose Line Is It Anyway. Now the two comedy greats are taking their show on the road. Just like Whose Line, the show is completely made up on the night, with Brad and Colin taking their cues from audience suggestions.