Justin Bieber was on the Late Show With David Letterman last night, and in a clip picked up by Gawker and other outlets, the teen heartthrob struggled just a bit with his geography. One of the perks of fame, he explained to Letterman, is that he’s visited “every continent.” Dave jumped on the opportunity, asking him exactly how many of those there are. “Asia, North America, South America, um, Africa, Antarctica, and the North Pole,” Bieber began. After getting buzzed for his wrong answer, he tried “Canada” before coming up with Australia and, finally, Europe—but only after Letterman gave him a hint. (More Justin Bieber stories.)