Gossip: Justin Bieber goes shirtless

He's worked hard to perfect his muscular physique, and is doing his utmost to show it off.

Justin Bieber delighted fans as he posted yet another shirtless picture on his Instagram page on Monday night, displaying his tattooed torso in the process.

The 19-year-old singer is seen with his brown hair teased up into a quiff as he stares moodily into the camera.