Selena Gomez is showing off her adorable smile for the Adidas NEO Campaign.

Slipping off her high heels, the "Spring Breakers" hottie rocked cute and casual ensembles with sporty sneaks for the young women's show collection.

Coincidentally, Miss Gomez's ex-boyfriend, "Beauty and a Beat" singer Justin Bieber, is the spokesman of the young men's collection for the campaign.

Meanwhile, rumors continue circulating about the singers reuniting once again after they were together in Norway just last week. On Sunday (April 21), Bieber actually posted pictures with Selena backstage at his concert.

However, after only a few minutes of being in the internet spotlight the picture was quickly deleted. Neither have commented on the rekindled romance at this time.