The Stars Strike Back: When Celebrities Photobomb Other Celebrities (PHOTOS)
What do celebs do when their famous friends shut them out of a picture? They photobomb them!
Although photobombing -- the act of sneaking into someone's photo uninvited -- has been around since the invention of cameras, this prank has just recently made it way to numerous Hollywood events around town. From the Golden Globes to a Coldplay concert, no place is currently safe from stars photobombing other famous faces.
Click through the gallery to see the celebrity hi-jinx then, in the comments below, tell us your favorite photo prankster.