Hot Summer Stomachs -- Guess The 'Bachelor' Hunk!

It's time to put your celebrity knowledge and skills to the true test, and for all you reality TV junkies ... this should be a piece of cake! Can you guess which Hollywood hottie put his summer bod on full display in this eye-popping shot?!

Okay, so he may not live in Hollywood, but he definitely got his start here ... When he's not workin' out and bulkin' up, he loves hoppin' on a boat in Florida.

Need one more clue? Kristin Cavallari kissed him for an 'Uncommon James' photoshoot.