Justin Bieber Winds Down on the Basketball Court with Austin Mahone
The "All That Matters" singer wore a gray T-shirt and gray pants that had trouble staying up as he busted some moves on the court with his teen collaborator.
As previously reported by GossipCenter, the pop pair announced that same day that they're working on new music together.
Along with the photo of the guys with Birdman and Mack Maine in the studio, Austin wrote, "What an amazing song last night..The world isn’t ready! @justinbieber."