While Presidents become late night circuit mainstays after their term, it's rare to see one appear for a sit down interview while in office. But that's exactly what Barack Obama did on the Late Show with David Letterman. Video after the break.

Britney Spears presented the "Top Ten Ways the Country Would Be Different if Britney Spears Were President" when she appeared on the Late Show With David Letterman last night. We think it fell flat & wasn't very funny. See the video after the jump and tell us what you think!

Hayden Panettiere showed up at the Late Show With David Letterman yesterday in a hot little black number. What do you think of the semi-revealing lace dress? See more photos after the jump...

Here's Fergie looking good as ever as she heats up the cover of the July issue of Allure Magazine! The Dutchess recently rejoined the Black Eyed Peas and the group released a new album, The E.N.D.; which has been tearing up the charts! Check out the rest of her Fergalicious pics after the jump...

Padma Lakshmi arrived at The Late Show With David Letterman yesterday in a one piece purple ensemble with gold jewelry accents. The Top Chef host makes jumpsuits look sexy, no? See more photos after the jump...

Fergie, of the Black Eyed Peas, performed on the NBC "Today" show wearing what resembles a gladiator arm cuff and claws. What do you think of the accessory? See more photos after the jump....

Fergie showed some shoulder, stomach and legs at yesterday's taping of "The Late Show With David Letterman." We think she looks hot in the green and silver sequined mini-dress. What do you think? See more photos after the jump...