Thomas and Acy maybe didn't want DeMarcus Cousins to get all the credit for the win.
LeBron James, Michelle Obama
The First Lady wasn't going to let LeBron have all the fun. WATCH VIDEO >>
Cincinnati Bearcats baseball
The picture doesn't tell the whole story. The Bearcats' postgame interviews are epic. WATCH VIDEO >>
At least he didn't steal his beer.
It's not just his Miami Heat teammates his likes to mess with. Bosh always looks creepy when he photobombs.
TNT / Twitter BoshBombing
Josh Hamilton liked having fun with Texas fans when he was a Ranger, and he still does when he visits the Lone Star State now with the Angels.
Facebook: Texas Rangers
Manziel always finds a way to steal the spotlight.
David Wright, Kate Upton, Upton brothers,
A rare photo which eveyone isn't looking at Kate Upton.
Danica Patrick, Tony Stewart
Stewart doesn't tweet on his own account, but all he needs to do is jump into Patrick's pictures to go viral on Twitter.
The Carolina Panthers quarterback can't even be serious at the New York Stock Exchange. Lindsey Vonn was the victim in this one.
This is something the Green Bay Packers quarterback does that never gets old. Check out all of his photobombing at rodgersphotobomb.com.
ESPN college basketball analyst Jay Bilas
Bilas takes college basketball seriously, but he always finds time to step into someone's picture.
Robert Griffin III
Who's the bigger star at Baylor? RG3 or university president Ken Starr (left)?
Shaq was photobombing long before there was social media. Here he was interrupting a Rick Fox interview during their days with the Lakers.
via Twitter @RTNBA
It was Robinson's moment when he got the call from the Jacksonville Jaguars during the 2013 NFL Draft. But his buddy decided it was his time as well on live TV. WATCH VIDEO >>
The San Antonio Spurs legend was just enjoying a Texas Longhorns basketball game in nearby Austin. But instead of the 7-footer getting in the way of someone's view, an elderly woman blocked Robinson's view. WATCH VIDEO >>
FOX Sports' Erin Andrews
Erin Andrews isn't the first photobombing victim of these guys. They've also made their way into a "Today Show" live shot before.
Dallas Cowboys cheerleader
A great photo of two pretty girls was ruined by this guy. Luckily, he can easily be cropped out.