Sweaters. That's what Selena Gomez is all about on her third Teen Vogue cover, which is the September 2012 issue.

In the images from the spread, Gomez is draped in cozy, comfy knits, which she loves. They're perfect for the chilly fall weather that lies ahead.

In the behind-the-scenes video footage, she describes her personal style "as really classic" and her favorite item of clothing is a sweater because "I love that cozy feeling."

Her hair falls in loose, light brown waves, a change from the glossy, stick-straight, darker locks she's been sporting lately.

Sel also lauds the magazine for "expressing who I am with each cover I've done." She reflects on her history with the publication, which is three covers strong. And she's only 20!

Gomez did reveal that there is one pop star namd Justin that she is dying to work with and it's not her boyfriend Bieber, either! It's Timberlake! "Who I would die to work with, but I don't think he ever would — I don't even think he's doing music anymore — is Justin Timberlake. Just 'cause I love his music sooo much," she said. Can you handle that, Biebs?

The singer/actress also expressed her personal philosophy, which is to keep things as cool and easy going as possible. No drama here. "It's really fun," she says about her life. "I'm lucky. I'm 20. I don't take anything in my personal life too seriously. I have great friends and a solid group of people I love. I feel like everything else will come organically."

And the most solid person in that group of people she loves? That hasta be The Biebs.

Watch Selena Gomez Behind-the-Scenes Video From Teen Vogue Shoot