Justin Bieber Shows Off Shirtless Workout To Harry Styles' Watermelon Sugar

Been having a hard time finding motivation to workout at home? WELL, a topless Justin Bieber may just be the fire under your butt that you needed!

Justin posted an absolute thirst trap collection of videos on his Instagram story -- a shirtless workout video listening to Harry Styles' "Watermelon Sugar."

He's shared some workout tips on his Instagram before, but this one really sent everyone over the edge LOL