Britney Spears went on the Late Show With David Letterman last night for her first appearance in nearly three years, and naturally she rocked a bikini when she read the "Top Ten Ways the Country Would Be Different If Britney Spears Were President."

Though Britney hammed it up for the cameras with lines like "My situation room would be a cabana at the Palms Casino in Las Vegas," we're not sure about the whole no clothes deal. Sure, Brit's been sporting all sorts of sexy bikinis at the pool this week, but should she have gone this skimpy for an appearance on a late night show?