Kiefer SutherlandDavid Letterman took a little break from skewering Jay Leno and NBC last night and had Kiefer Sutherland as his guest on 'The Late Show,' who came out wearing a green dress.

"I lost a bet," the '24' star explained to a laughing audience and a shocked Dave.

"Over the weekend I was so sure New England was going to win that I told a guy who used to be my friend that if New England lost I would wear a dress on 'Letterman,'" he added, referring to the Patriots' loss to the Baltimore Ravens.

Letterman describe the frock as "quite slimming" when Sutherland twirled around to show the full effect. Watch Video After the Jump