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

• Charlie Rose: another installment of The Charlie Rose Science Series
• The Daily Show: Michael Gerson
• The Colbert Report: Richard Berman
• The Late Show With David Letterman: Jerry Seinfeld and Joe Torre
• Jay Leno: Russell Crowe, Carrie Underwood, and Jenna Bush
• Jimmy Kimmel Live: Sarah Silverman, Balthazar Getty, Wayne Newton, and Justice (repeat)
• Tavis Smiley: General Wesley Clark and Lyle Lovett
• Late Night With Conan O'Brien: Charles Barkley, Billy Baldwin, and Seether
• The Late, Late Show With Craig Ferguson: Kristin Chenoweth, Clive Barker, and James Jonah
• Last Call With Carson Daly: Jerry Stiller and Paolo Nutini (repeat)