We’ve all done it, or at least know a bunch of people who have. We're talking about snapping the narcissistic selfie, taken in a mirror or with the camera flipped, then uploaded onto our social media sites in hopes of a few “likes.” Whether you’re guilty or not, it's all #instagood—celebrities do it too. In fact, within the past few months, a whole slew of actors, musicians, and athletes have taken to Instagram and Twitter, uploading pictures of their ridiculously fit bodies. Here are nine of the best, starting with Miles Teller. The Whiplash actor whipped himself into fighting shape for an upcoming film, Bleed for This, a biopic about World Championship Boxer Vinny Pazienza. Teller— who's currently starring in Divergent—fessed up to Jimmy Fallon on The Tonight Show that he didn't think he was in good enough shape (at the time) when offered the role. He also mentioned that Pazienza's story was very intimidating, but clearly that motivated him to mold his body.