Selena Gomez, the "Slow Down" singer, recently debuted her Adidas NEO Winter 2013 collection campaign.

According to JustJared, Justin Bieber's ex-girlfriend, 21, showed off her new clothes featuring various styles.

[For the campaign photos, click HERE.]

Taylor Swift's friend had announced her work with the popular brand earlier this year. After a successful campaign already, the singer introduces a new range of clothing with metal studs, zippers, cutouts, fringe and gold.

"I love playing around with fashion and mixing different styles together," Gomez said.

The "Getaway" movie star, who has been romantically linked to Union J's George Shelley, invites her fans to participate in a competition about stylizing her best clothing items from the collection.

"This competition gives my fans to show off their own individuality by picking their favorite campaign shot and creating their own unique version of it," Gomez explained. "I can't wait to share the best image on my Facebook page."

The brunette beauty had already introduced a 53-piece collection with Adidas NEO in July. The first collection featured pleather motorcycle jackets, oversized tote bags and footwear. And now, she seems even more excited about this range.

Entering Gomez' contest? Let us know in the comments section below!