Paris Hilton visited the Late Show With David Letterman on Friday night and the interview didn't go as planned for the heiress. She was there to promote her new fragrance Can Can and talk about Repo! The Genetic Opera, but Dave just wanted to ask about jail. Paris stayed good natured even though she very clearly wanted to change the subject. She eventually pouted until she got her way, but not before Dave got in a few good jabs. Watch it below and let us know — do you think Letterman crossed the line with Paris?