Justin Bieber works up a sweat while on a hike on Saturday night (September 3) in Hollywood.
The 22-year-old Love Yourself singer went shirtless as he hit the trails during the sunny afternoon.
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Justin has been taking full advantage of the summer sun while he works out. Earlier this week, Justin was spotted without his shirt on another solo hike around Hollywood.
20+ pictures inside of Justin Bieber going shirtless on his hike…