Celebrities are usually very poised and put together, but one lucky fan recently had the honor of making Britney Spears laugh in the middle of her Piece of Me show in Atlantic City, NJ, on July 20. As Britney was wrapping up "Gimme More," a fan named Zachary Gordon-Abraham yelled out, "Who is it?" and Britney couldn't resist laughing before delivering her famous line, "It's Britney, b*tch." Zachary later posted the video on Instagram, taking full credit for the cute moment. "I can now be known as the guy in the crowd that made Britney laugh," he captioned it. See the epic moment above.