R&B singers Usher and Chris Brown, along with dancehall musician Elephant Man, shared the stage over the weekend in Montego Bay as they performed at Jamaica’s annual Reggae SumFest.

In the middle of his set, Usher surprised concert-goers when he brought out his young friend Chris for a dance-off that caused the crowd to go bizerk! After showing off their best moves, the two ended their surprise on-stage collaboration with a strong, heart-warming hug.

There’s no video footage yet of the dance-off, but in the meantime, check out a few pics of Usher, Chris Brown and Elephant Man onstage Friday night (Jul 23) at the 2010 Reggae SumFest in Montego Bay, Jamaica below…