Justin Bieber took a few minutes out of the endless studio sessions for his new album on Tuesday night to remind us that he can still whomp on the drums.

Sliding behind the kit incognito on James Corden's "The Late Late Show," JB sat in with Reggie Watts and the house band at the end of the episode featuring his pal Tori Kelly, smiling as he played over the credits and Watts made his usual magical mouth sounds.

Unannounced and low-key, Justin flawlessly kept the beat and worked the cymbals and cowbell like a champ, taking a little bow at the end.