Footage has surfaced - thanks to Conan O'Brien - of "Bieber" hitting the boxing ring with Floyd Mayweather Jr., and given his history, it's a whole new kind of fight for the young pop star. For one, it's all in good fun.

Bieber and Mayweather have actually been pals for a couple of years now. Recall in 2012 when Bieber first entered the ring with the heavyweight champion in Las Vegas, along with 50 Cent and WWE wrestler Triple H. The motley crew escorted Mayweather into the ring.

Now Bieber has his boxing gloves on. In the video obtained by Conan, Bieber trains with Mayweather, taking a few shots in the head and stomach - before trying to run away from Mayweather, who ends up beating on Bieber with a baseball bat and pouring the contents of a garbage can over him.