Lady Gaga and Justin Bieber have cameos in 'Men In Black III'

What’s better than a summer full of Will Smith and Tommy Lee Jones fighting aliens? Adding Justin Bieber and Lady Gaga to the mix for the third installment of Men in Black!

According to E! Online, the two singers will have a small part in the summer blockbuster hit. In an interview with Collider, director Barry Sonnenfeld revealed that both Gaga and the Biebs will play aliens.

He tells the site, "In this [installment] 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…The challenge is getting celebrities that are famous, will give you permission and won't be like 'Who's that guy?' in 10 years."

According to reports, Will Smith, who plays Agent J, actually gave away the secret of Gaga’s cameo. At the time he said, "We have a few celebrity cameos, but I think I can not reveal who they are. We must keep as a surprise that Lady Gaga appears."

The excitement will be to see what sort of costume they will come up with for Gaga. The singer is notorious for her outlandish outfits, so it will be interesting to see what Sonnenfeld will come up with. What sort of aliens do you think Gaga and Justin will play?