John Stamos
You may know him as Uncle Jesse from Full House, but back in high school, John Stamos was just a typical teenager. With his long hair, babyface, and white suit, the star is almost unrecognizable. It’s clear this photo was taken in the 1970s. If his hair didn’t tip you off, then maybe his date’s hairstyle will!

John Stamos reprised his role as Uncle Jesse in the Full House spinoff Fuller House. He’s also been in the shows Grandfathered, General Hospital, ER, and the Netflix thriller You. The talented star is married to Caitlin McHugh and has a son named Billy who is just two years old.