If you haven't noticed, we love our celebrity transformations on J-14. There's something so jaw-dropping about seeing new photos of stars when you only remember them a certain way. Whether it's your childhood crush or your favorite television stars, some celeb dudes have grown up a lot over the years.

Cole Sprouse and Dylan Sprouse stole our hearts on The Suite Life of Zack and Cody, and they're no less swoon-worthy today. If anything, they've just aged a few years and look even hotter! You were first introduced to Paul Butcher on Zoey 101 as the titular character's younger brother. Well, he's no longer a little kid. He's a certified hottie who looks seriously dapper in a suit.

Meanwhile, Joe Jonas is everywhere with his band DNCE, but when he first broke onto the scene, he sported much longer hair and had a penchant for fedoras. Remember that?! These photos are a serious trip down memory lane. When you see old Justin Bieber, your heart may skip a beat.

Click through the gallery to see your favorite male stars transform right before your eyes. Let us know which transformation shocked you the most!

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