I’m not sure exactly what’s going on here, but I’m pretty sure that last night on Twitter, Justin Bieber challenged Tom Cruise to a FIGHT.  Not, like, a street fight or anything.  He’s talking MMA.

He Tweeted, quote, “I wanna challenge Tom Cruise to fight in the Octagon.  Tom if you don’t take this fight [you’re] scared and you will never live it down.  Who is willing to put on the fight?  @danawhite?”

Dana White is the boss of the UFC.  Obviously, he’d probably KILL to promote this fight.

It seems like this HAS to be a joke . . . but Justin hasn’t posted a follow-up Tweet yet.