Justin Bieber Challenged Tom Cruise To A UFC Fight

CNN reports Justin Bieber has tweeted that he wants to fight Tom Cruise.
The singer tweeted the challenge on Sunday.
No one is sure why Bieber wants to fight the actor.
@justinbieber
I wanna challenge Tom Cruise to fight in the octagon. Tom if you dont take this fight your scared and you will never live it down. Who is willing to put on the fight? @danawhite ?
Dana White is the head of the Ultimate Fighting Championship (UFC), the world's largest mixed martial arts (MMA) organization.