Teen sensation Justin Bieber is currently in England on his first UK arena tour and accepted an invitation to spar with World Heavyweight boxing champion David Haye. 

The unusual pairing came about after Haye heard that the 'Baby' singer was in London and they met at his gym in Vauxhaull, South London. Following their training and workout, the fighter tweeted (March 14):

"Great workout in The Hayemaker Boxing Gym @justinbieber. You you sure can pack punch!! http://ehqqy.tk I'm now a Belieber! Stay Blessed!"

Haye is no stranger to sparring with the famous faces of music as he spent several sessions both fighting and training with the 'Fix Up Look Sharp' rapper Dizzee Rascal. Watch Bieber perform 'Never Let You Go' during his show at London's O2 here: