Stamos posted the throwback to Instagram on Friday, which showed him dressed in an all-white ruffled suit with red stitching down the front and a big bow tie. He captioned the pic with three simple hashtags: #TBT, #Prom and #Hair.
Even though he looked like a million bucks in high school, the 53-year-old actor has admitted that he wasn’t a cool kid while growing up in Orange County, California, high school.
"I know everybody says this, but in high school, I really was the dorky kid," he told Orange Coast magazine in 2014. "I was into magic and theme parks. I was very innocent. When a lot of kids my age were going out drinking on Friday and Saturday nights, I was at Disneyland, going on the rides and listening to the bands."