Here's who's on the late night shows tonight.

• Charlie Rose: Keith Olbermann
• The Daily Show: Allen Guelzo
• The Colbert Report: Tony Snow
• The Late Show with David Letterman: Natalie Portman and Kenna
• Jay Leno: Miley and Billy Ray Cyrus and Brooke Shields
• Jimmy Kimmel Live: Heidi Klum, Jim Cramer, and Bullet For My Valentine
• Tavis Smiley: Ajamu Baraka and Senator Sherrod Brown
• Late Night with Conan O'Brien: Tom Arnold and Georgie James
• The Late, Late Show with Craig Ferguson: Eric Bana, Patricia Clarkson, and Barry Manilow
• Last Call with Carson Daly: Glen Hansard and Marketa Irglova and Rob and Big (repeat)
  

• At 8, FOX has a new American Idol, then a new Back To You.
• CBS has a new Big Brother at 8.
• ABC has a new Wife Swap at 8, followed by new episodes of Supernanny and Men in Trees.
• PBS has new episodes of America's Ballroom Challenge and American Masters.
• NBC has a new Deal Or No Deal at 8.
• There's a new America's Next Top Model at 8 on The CW.
• Also at 8: TCM has On The Beach, followed by High Noon.
• At 9, CNBC has a new American Greed.
• HGTV has a new Deserving Design at 9, then a new Design on a Dime.
• At 9:30, HBO has a new In Treatment.
• At 10, NBC has a new Law and Order.
• Bravo has a new Project Runway at 10.
• At 10:30, Comedy Central has a new Reno 911.

Check your local TV listings for more.