The preparation celebrities go through for the red carpet is immense, from hours in hair and makeup, to weeks preparing wardrobe options. And that's not even counting all the time put into practicing their walk, smiles, and poses! All of this hard work is perhaps what makes it so absolutely hilarious when stars throw all that glamour to the wind and create the least glamorous photos of all: photobombs.
That's right—even celebrities feel that little irresistible urge as they see someone easing into their favorite pose for the camera. Click through to see the best of the worst.