Today, June 10, is a very important day. Why? Well, it’s Jonathan Bennett‘s birthday! Yep, that’s right. The actor who played the infamous Aaron Samuels in Mean Girls is turning 38 years old today, and we cannot believe how fast time has flown by!

We can probably all agree that Mean Girls one of the most epic movies ever, right? In case you forgot, it hit theaters back in April 2004 (when Jonathan was only 23 years old!), but now, over 15 years later, it’s still just as iconic, TBH. It also starred Lindsay Lohan, Rachel McAdams, Lacey Chabert, Amanda Seyfried, Lizzy Caplan, Daniel Franzese and more.

But what is the birthday boy up to now? In honor of his birthday, we decided to do some investigating, and it turns out, he’s accomplished a lot over the last 15 years. He went on to star in a ton of movies and TV shows, appeared in Ariana Grande‘s “Thank U, Next” music video and so much more.

And he’s not the only one to change a lot since Mean Girls premiered. We went ahead and rounded up some then-and-now photos of the entire cast of the epic movie, as well as everything they’ve done since it came out. You are seriously not going to believe what some of them look like now! Yeah, talk about a MAJOR glo’ up.

Scroll down to see what the cast is doing now and how much they have transformed over the years.

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