We knew it! Even perfectly clear-skinned teen idols like Justin Bieber get zits.

The Canadian singer and aspiring actor has signed on as the latest pitchman for Proactiv. Bieber joins the ranks of Katy Perry, Avril Lavigne, Vanessa Williams, Jenna Fischer, and Julianne Hough as the face of the acne-treatment system.

The 16-year-old heartthrob seems to be reaching for the "just a few zits" crowd in his promo (above), in which he's shown in the recording studio and hanging with "pals" on the basketball court.

Bieber talks about the good and bad parts of the teen years, such as his rapidly growing feet ("I can't stop that"), hormones ("I don't want to stop that!!"), and a little acne ("I can stop that!").

"I used to think that Proactiv was only for the hard-core cases," he says. "Guess what? It's also just right for kids like me."

In a statement from the brand's distributor, Guthy-Renker, Bieber also says, "This is kind of a way I can give back to my fans, by letting them know I use Proactiv... My fans already know I'm just a regular kid, except the stuff about my life that's not regular... like performing to thousands of kids and always being in the spotlight. But I know that for a teenager, it doesn't matter how many people are looking at you, you don't want acne on your face."

(And StyleList always thought Bieber's famously shaggy bangs were to flatter his high forehead.)

Bieber's new product affiliation begs the question: Will his all-grown-up hair imitators, Tom Brady and David Scwhimmer, be speed-dialing for the product?

Meanwhile, check out what Bieber's flirty, older gal pal, Kim Kardashian, is plugging these days.