35 / 35

Zach Braff

"Hey @jessicaalba this is a great shot of us," tweeted Zach after sneaking into this photo of "Machete" actress and Fergie. Credit: Twitter

Celebrity Photobombs

Yahoo Celebrity

Celebrity photos are fun to look at. Celebrity photos hijacked by other famous people are twice as awesome. From George Clooney to Beyoncé, see who can’t resist jumping into a snapshot at the last minute for some laughs.