“How Bustin Jieber duped me during my own set,” Gryffin captioned the clip, referring to the mimicker.

Justin Bieber is on daddy duty. On Monday, Aug. 18, the singer, 31, shared an Instagram carousel featuring new photos of himself and his 11-month-old son Jack Blues, whom he shares with his wife Hailey Bieber. In the pictures, Jack, who turns 1 on Aug. 22, sat back on a large cushion as his legs dangled on his father's shoulders.

Hailey reacted playfully in the comments, joking about Kendall’s storytelling style—a remark that quickly went viral.