Justin Bieber has said he “took it easy” on heavyweight boxing champion David Haye during a sparring session.
The two spent time in the ring on Monday (March 15) as Bieber arrived in the capital on his UK tour.
Posting a picture on Facebook, the teen star said: "Worked out with Boxing Heavyweight Champion of the World David Haye. I took it easy on him. haha. good times.”
Haye also posted the picture on his Facebook page, and told his fans that Bieber was a “natural athlete”.
He later wrote on Twitter: "You sure can pack punch!! I'm now a Belieber. Stay Blessed!"
Bieber played the first of three gigs at the O2 Arena in London last night – you can see photos below. For more details, check out Gigwise Gig Tickets.
Justin Bieber - live