Here's who's sitting down on the couch on the late night shows tonight.

• Charlie Rose: Bill Richardson
• The Daily Show: Jerry Seinfeld (repeat)
• The Colbert Report: Craig Venter and Massic Ritsch (repeat)
• The Late Show With David Letterman: Regis Philbin and Chamillionaire (repeat)
• Jay Leno: Reese Witherspoon, David Koechner, and PJ Harvey (repeat)
• Jimmy Kimmel Live: TBA
• Tavis Smiley: Ernest Borgnine
• Late Night With Conan O'Brien: Kevin James, Jordana Spiro, and Greg Giraldo (repeat)
• The Late, Late Show With Craig Ferguson: Jimmy Smits, Michelle Monaghan, and Shout Out Louds (repeat)
• Last Call With Carson Daly: TBA (repeat)