So Justin Bieber recently made waves when he posted a snap of his derriere for all of Instagram to see! But Bieber's buns aren't the only hot results of some serious squat action. We've pulled together 12 ass-tastic shots of dudes who've really been hitting the gym and it shows! Here is some eye candy to get you through hump day! You're welcome. #1 Check Out This Peepshow #2 Are You Wearing Space Pants? #3 Just Taking Your Undies Off There? Ok, Carry On. #4 His Muscles Are Amazing But It's All About The Butt #5 Skinny Dipping, Anyone? #6 Two Full Moons! #7 He Definitely Deadlifts. Damn. #8 Could Someone Tell Me Where These Beaches Are? #9 The Squat Squad! #10 Tight Trunk Alert #11 We're All Hoping He's Majestically Thinking About Us #12 And Now The Man Who Started It All! We Present The Infamous Bieber Buns! Ah the beauty of squats. Which one of these ripped dudes is your favourite? Let us know!