It's either hysterical or completely disrespectful.
Look closely on the left-hand side of this wedding shot taken on a busy New York street.
It's actor Zach Braff posing with a goofy grin.
Sascha Reinking, the photographer, sent Braff a copy of this picture via Twitter.
Braff then re-tweeted it calling this "One of my best photobombs ever."
No word on how the happy couple felt about it.