Little Jansen Panettiere is definitely not little anymore — he'll turn 21 this September. Soon, he'll be old enough to drink, while all of us are just over here wondering when the kid from the Disney Channel movie "Tiger Cruise" grew up.

FYI, this movie came out 11 years ago. 😳

Just like with his older sister Hayden, Jansen continues acting. He has three projects currently in post-production, according to his IMDb page.

He's grown from this adorable boy...

...to this hunk!

Jansen's been in films such as "Robots," "The Last Day of Summer" and "The Forger." Back in 2013, he guest-starred on an episode of the TNT hit show "Major Crimes."

Hard to believe he's the same kid who gave us this magical rendition of The Police song "Roxanne."

But then again, it's not that hard to believe.

He enjoys sharing fun #TBT pics of him and big sister Hayden on his Instagram page.

And according to Facebook, he's the co-founder of Abstract Charms, which sells "hand crafted artisan indie jewelry and accessories."

Be sure to check out his newest film "The Martial Arts Kid," which is set to debut this fall, according to IMDb.

Congrats on all your success, Jansen. You've grown up quite nicely. 👏