First up is rising star Leona Lewis, followed by the always unpredictable Gnarls Barkley.

If you’re up early on Sunday, be sure and check out songwriters-to-the-stars Ashford & Simpson.

And for Monday evening viewing, may we recommend Spoon, Daniel Lanois or Morrissey?

Friday, April 11

Leona Lewis – “The Ellen DeGeneres Show”

Ryan Bingham – “The Tonight Show with Jay Leno”

A.A. 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”

Sunday, April 13

Ashford & Simpson – CBS News “Sunday Morning”

Monday, April 14

Tracy Morgan – “The View”

David Spade – “The Ellen DeGeneres Show”

John Legend – “The Colbert Report”

Ray J – “The Tonight Show with Jay Leno”

Spoon – “Late Night with Conan O’Brien” – rerun

Cobra Starship – “Jimmy Kimmel Live!” – rerun

Daniel Lanois – “Late Late Show with Craig Ferguson”

Morrissey – “Last Call with Carson Daly” – rerun