The Baby hitmaker indulged in an impromptu skate session on the streets of New York City, causing fans and tourists to gather outside Madison Square Garden.
The 20-year-old, who was accompanied by rumoured girlfriend Hailey Baldwin, ended up on the floor after failing to finish a difficult move involving a flight of stairs.
Despite his trip, the singer, who was dressed in a mostly black ensemble, tweeted his 58.5 million to say: 'Fun day in nyc. Love all my beliebers'.