She's back! Selena Gomez has made her return to the red carpet at the American Music Awards — her first public appearance since checking into rehab again.

The 24-year-old beauty looked stunning in a red gown with a sleek ponytail and diamond earrings.

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The "Hands to Myself" singer checked into rehab for personal reasons, and according to In Touch, Selena is also back with ex Justin Bieber, who is performing at the awards show from Europe.

"She’s already talking as if they are engaged,” the source says of their relationship. "Selena will get married in private, just to show them she doesn’t need [her family’s] approval."

Welcome back! For a look at more stars on the red carpet, check out the gallery below!