Selena Gomez [1] is a self-proclaimed Friends superfan [2], but she seems to be "pretty rusty" when it comes to her trivia knowledge [3]. In a recent video with Interview magazine [4], the 27-year-old "Boyfriend" singer [5] was quizzed about the NBC series, and let's just say it didn't go so well. While Gomez was off to a good start (she remembered the names of Monica and Chandler's kids and Joey's stuffed penguin), things took a turn after the 10th question. In her defense, the questions were tough. "We gotta edit some of this because I'm letting a lot of people down," Gomez said, before revealing that she's been cheating on Friends and watching Will & Grace recently. Watch Gomez take the Friends trivia quiz above, then see how Courteney Cox [6] did when Jimmy Kimmel put her knowledge to the test [7]!