Up-and-comers and artists off the beaten path include Katy Perry, The Redwalls, Switches, Del Tha Funky Homosapien, Ryan Bingham, A.A. Bondy, The Tender Box and Leona Lewis.

Tuesday, April 8

Rosie O’Donnell – “The Martha Stewart Show”

Sheryl Crow – “Dancing with the Stars”

The Mars Volta, Bruce Willis – “Late Show with David Letterman” – rerun

P.O.D. – “The Tonight Show with Jay Leno”

Phantom Planet – “Jimmy Kimmel Live!”

Clinton Jackson – “Late Late Show with Craig Ferguson”

Katy Perry – “Last Call with Carson Daly”

Wednesday, April 9

Trisha Yearwood, Eddie Izzard – “The View”

Bono, Annie Lennox, Celine Dion, Dane Cook, Miley Cyrus, Mariah Carey, Fergie, Heart, Chris Daughtry, Carrie Underwood, John Legend, Snoop Dogg, Maroon 5, Gloria Estefan, Ashley Tisdale, Elliott Yamin, Fantasia and others – “American Idol: Idol Gives Back”

Will Ferrell, Michael McDonald – “Late Show with David Letterman” – rerun

Donny & Marie Osmond, Angie Stone – “The Tonight Show with Jay Leno”

Tapes ‘N Tapes – “Late Night with Conan O’Brien”

Bret Michaels – “Jimmy Kimmel Live!”

Rosanne Barr, Counting Crows – “Late Late Show with Craig Ferguson”

Thursday, April 10

Paula Abdul – “Late Night with David Letterman” – rerun

The Redwalls – “The Tonight Show with Jay Leno”

Eddie Izzard, They Might Be Giants – “Late Night with Conan O’Brien”

Switches – “Jimmy Kimmel Live!”

Del Tha Funky Homosapien – “Late Late Show with Craig Ferguson”

Ben Harper – “Last Call with Carson Daly”

Friday, April 11

Leona Lewis – “The Ellen DeGeneres Show”

Ryan Bingham – “The Tonight Show with Jay Leno”

AA Bondy – “Late Night with Conan O’Brien”

Leona Lewis – “Jimmy Kimmel Live!”

The Tender Box – “Last Call with Carson Daly”

Saturday, April 12

John Prine, Amos Lee – “Austin City Limits” – rerun

Gnarls Barkley – “Saturday Night Live”