After bumping into him at LAX, the pop star asked to take a photo with the 'Modern Family' actor... but O'Neill didn't know he was talking to Britney Spears!
Before breaking out as an international pop star, Britney Spears was just another teenage singing hopeful previewing her first songs in front of label execs.
From '...Baby One More Time' to 'Work Bitch,' the Living Legend's provided plenty of potential songs to perform since she stepped out on the scene in 1998.
The Legendary Miss Britney Spears is set to be honored for her achievements at the 2016 Billboard Music Awards, where she'll also be performing a medley of hits.