(Credit: Gregg Delman)
What's the easiest way to tell if someone's photogenic? Dress them up in a form-fitting lime green romper, stick them under fluorescent lights, and then start snapping away. If the result is anything like the photo above, you're probably dealing with a bona fide camera magnet like Katy Perry, who sizzles in this post-TRL photo shoot despite rocking a corset-style onesie the color of a slightly radioactive Granny Smith.
+ For more snaps in which Katy Perry proves that sometimes it IS easy being green, check out the rest of these exclusive MTV photos, and read up on her recent visits to FNMTV and TRL. Plus, watch her ponder a lipstick-lesbian tryst in "I Kissed A Girl."