Last night on Letterman, Bradley Cooper rehashed some of his pre-fame gigs, which included serving as a hotel doorman and hosting a little-watched Discovery Channel show called Globe Trekkers. "The idea was that you were not an expert and they loved that and they wanted to watch you suffer," said Cooper, who was sent by the show to cycle the Viking trail and kayak with orca whales. However, one delicious bit of Globe Trekkers-induced suffering was conspicuously absent from Cooper's anecdote: The time the show forced the then-25-year-old to go to a nude beach in Croatia and take his clothes off. Lucky for you, Movieline's got the video. Enjoy!