Billboard Music Awards: Pitbull and Chris Brown Perform "Fun"

Pitbull and Chris Brown teamed up for a performance of their collaborative track "Fun" at the Billboard Music Awards on Sunday evening.

Brown, wearing a slick red suit, opened the set as he crooned the first verse and showed off his signature moves with a crowd of female dancers. A staircase and several couches were placed on the stage to make the set look like an upscale house party. The backdrop showed a view of a lit-up city as Pitbull and Brown pumped up the crowd and their onstage "party guests."

Read MoreBillboard Music Awards: Full Winners List

Brown was nominated for three awards: top R&B artist, top R&B album and top R&B song.

Ludacris and Chrissy Teigen co-hosted the awards show, which took place at the MGM Grand Garden Arena in Las Vegas.