Justin Bieber used a date night with Sofia Richie to show off his serious skills on the drums.
Biebs was at Mozambique restaurant in Laguna Beach and joined a reggae band onstage recently, but not to sing ... he was there to beat the skins.
Justin showed up with his current squeeze and a few other friends. They mingled and took a few pics, but the main event was JB banging out a beat.
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