Talk show host Conan O'Brien; James Taylor performs.

Comic Billy Crystal; Prince performs.

Comic Wanda Sykes; Sarah McLachlan performs.

California Gov. Arnold Schwarzenegger; Dwight Yoakam performs.

Actor Mel Gibson; Lyle Lovett performs.

Journalist Brian Williams; TV personality Jesse James; Tori Amos performs.

Actor Andy Samberg; "American Idol" Kris Allen; Lionel Richie performs.

TV show host Bill Maher; TV show host Adam Richman; Mandy Moore performs.

Former professional football player Terry Bradshaw; 8-year-old pianist Ethan Bortnick; Blink 182 performs.

Actress Cameron Diaz; comic Kirk Fox; Blink 182 performs.