Justin Bieber is headed straight into the danger zone.
I wanna challenge Tom Cruise to fight in the octagon, Bieber wrote.
Tom if you dont take this fight your scared and you will never live it down.

Credit: Jason Merritt/Getty Images; Karwai Tang/WireImage
Who is willing to put on the fight?@danawhite?
Second: There are probably a few other reasons Cruise might reject this opportunity other than being scared.
He might think a celebrity boxing match is rather silly or beneath him, for instance.
Or he might be busy doing just about anything else.
TheMission: Impossiblestar has not commented on the throw-down challenge.
Some stats: Bieber is 25 years old, 59, and reportedly 146 pounds.
In other words: This is Cruises mission, should he choose to accept it.