Bombs away! When they weren't snapping selfies, celebs were busy perfecting the art of the photobomb in 2013. Check out 9 of our faves.
Zach Braff/Wedding Shoot
With impeccable timing and a perfect grin, even the former "Scrubs" star couldn't have planned this photobomb of a German couple posing for a wedding pic in NYC's Times Square any better. "This is one of my best photobombs ever," the actor proudly tweeted to his followers along with the photo.
Tyler, the Creator/Donald Trump
Odd Future member Taco (R) asked fellow guest Donald Trump for a photo backstage at "Late Night With Jimmy Fallon." Little did "The Donald" know, the infamous Tyler, the Creator was looming right behind.
Claire Danes/Lena Dunham
The "Homeland" and "Girls" stars grew up down the street from each other and shared a tender, albeit funny, moment on the Emmys Red Carpet.
Bill Clinton/Kelly Clarkson
Who's that peeking out at Kelly Clarkson? It's none other than former President Bill Clinton at the 2013 Presidential Inauguration.
Kelly Clarkson/Ellen DeGeneres and Portia de Rossi
Weeks after the Clinton bomb, Kelly got payback at the Grammys. Smile for the camera, Ellen and Portia!
Aaron Paul/Bryan Cranston
Of all the Aaron Paul photobombs, this pic from the Emmys has to be his top shot. "Breaking Bad" might have come to an end, but we want more photobombs of Aaron and Bryan!
George Clooney/Steven Spielberg and Jerry and Jessica Seinfeld
Imagine if George had pulled out the bunny ears instead?
Selena Gomez/Joseph Gordon-Levitt
JGL was already taking a backstage selfie at the MTV VMAs, but somehow Selena managed to get in on the goofy action.
Kevin Spacey/Matthew Perry and Conan O'Brien
With an ominous stare, Kevin Spacey snuck into Matthew Perry and Conan O'Brien's photo op at the White House Correspondents' Dinner in April.
Jennifer Lawrence/Sarah Jessica Parker
It was punk night at this year's Met Gala and J.Law made sure to keep with the theme, bombing SJP's red carpet stop.
Which photobomb is your favorite?