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Justin Bieber is notorious for his love of baring his chest and going shirtless whenever possible, and it appears his entourage has fallen for the fad as well.

The pop sensation and pals sported matching black undies as they showed off their abs and caught some sun at the singer's Calabasas home, and his bestie Lil' Twist decided to share a snapshot of the group in all their glory.

From the looks of it, The Biebs has been busy at the gym, because his guns have never looked so ripped before!

Ladies, eat your heart out!