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Director Barry Sonnenfeld says the famous singers will play aliens alongside kooky movie man Tim Burton.
"In this [film] there are a few people that you'll see up on the surveillance board including Lady GaGa, Tim Burton, who probably knows more about aliens than I do, and let's see who else ... Justin Bieber," revealed the director.
In previous 'Men in Black' films, the "Alien Surveillance Board" has shown the likes of Steven Spielberg and George Lucas. Sonnenfeld wanted to find famous faces that wouldn't be forgotten in 10 years, and we're pretty sure he picked the right icon's for his newest flick!
"Men in Black 3" hits theaters May 25. Check out Pitbull's "Back in Time" from the film's soundtrack below.