Justin and Gaga are just two of the big-name guest stars making an appearance in the third part of the franchise, which stars Will Smith
and Tommy Lee Jones. Gaga and Bieber will play aliens who sit on a surveillance board, alongside filmmaker Tim Burton.
Director Barry Sonnenfeld said: “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.”