Thanks, Puberty! 6 Celebrities Who Grew Up Very Well

There are a lot of hot guys in Hollywood, but some haven't always been that way. Okay, so we can't blame a 12-year-old boy for being a little bit geeky, but we can appreciate those who managed to get past their awkward stages and jump straight into looking gorgeous.

Isaac Hanson has come a long way since his "MMMBop" days, and we're definitely not complaining.

We'll always remember Nick Jonas as a cute little Disney star with a mop of curls, so seeing him look like a grownup today is actually very confusing. Did you see him host Miss USA?

Josh Peck's weight loss obviously contributed greatly to his new look, with the addition of a tan and some facial hair, he literally looks like a different person.

We're not sure what Matthew Lewis ate or drank over the course of filming the Harry Potter series, but we give 100 points to Gryffindor!

In the course of his career, Shia LaBeouf has gone from quirky nerd to hot movie star to kinda looking like a caveman. But we'll ignore that stage and reflect on how fab he looks while clean-shaven and dressed up.

It's no secret that Taylor Lautner is potentially one of the most desirable guys on the planet, but does anyone else remember Taylor as Shark Boy? Oh yeah. That happened.