If your dad was never one to shy away from costume parties, you might empathize with the surprise of this young lady. Picture twenty-one is all about a dad who loves to go all out with his attire. When it came to dressing up for a party, he took the plunge and transformed into the pop sensation, Ke$ha.

Decked in a blonde wig and rockstar makeup, he was definitely feeling his revamped persona. Caught in the spirit of his new guise, he decided to mark this memorable occasion with a selfie. As he struck his best ‘blue steel’ look for the camera, he overlooked a little something.

Unbeknownst to him, the picture captured more than his transformation. His daughter’s incredulous expression was perfectly framed in the background, painting a vivid picture of surprise, perhaps mixed with a dash of mortification. Needless to say, this is one selfie that will keep their family and friends entertained for years to come.