Ronnie is all beefed up with hair full of gel these days, but as a kid, he rocked a serious bowl cut.
Though he likely chugged some Ron Ron Juice through the years to help his physique (and dance moves, natch), black is super slimming, so it’s hard to tell how much he worked out as a kid.
He posted this pic on Instagram, captioning it, “#TBt #AllBlacKEurything #BowlCuts.”
Boy, he has changed! Did you know it was Ronnie? Tell us below, and then click here to play more Jersey Shore “Guess Who?”