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We love when our fave cute guys flaunt their amazing abs in hot shirtless pics, but sometimes their shirt-free snaps are seriously strange. We expect to see guys shirtless on the beach, lounging by the pool, or breaking a sweat at the gym, but when Justin Bieber goes horseback-riding shirtless and Austin Mahone takes a Segway out for a spin without a tee, we get a whole new category of bizarre (but still incredibly hot) shirtless photos!
Click through the gallery above to see the most surprising places your fave hot guys have ever taken shirtless pics. Which guy's pic is your fave? Tell us in the comments section below!