Sarah Hyland rocks the stage, packs on PDA with Wells Adams at the Teen Choice Awards Editors

Sarah Hyland had a big night at the 2019 Teen Choice Awards on Sunday!

The "Modern Family" actress star hit the red carpet ahead of the show in Hermosa Beach rocking a white-and-orange two-piece Teresa Helbig ensemble complete with a crop top. She finished off the look with orange heels, a chic ponytail, essie nail polish and her new engagement ring from "Bachelor in Paradise" star fiancé, Wells Adams.

SEE ALSO: All of the red carpet looks from the 2019 Teen Choice Awards

The outing marked Hyland's first official appearance since getting engaged in mid-July.

While she walked the red carpet solo, Adams was indeed at the awards show. Photos of the couple show them packing on the PDA backstage after Hyland's debut live performance, where she joined Jordan McGraw for their duet, "Met At A Party."

See photos of all of Sarah Hyland's big moments at the Teen Choice Awards below:

Wearing a neon pink mini dress covered in ruffles, the 28-year-old actress had appeared from behind a giant beach ball onstage to sing alongside McGraw, who is Dr. Phil's son. The pair had a fun dynamic onstage as they interacted with fans throughout their summer-y song.

As mentioned above, once the performance ended, Hyland was greeted backstage by her fiancé, and the couple shared a smooch and smiled for cameras with the actress still in her performance look and Wells dressed in a so-called Canadian tuxedo of a denim jacket and jeans.

Just under a month after announcing their engagement to the world, Wells and Hyland appear to be basking in their romance. The former "Bachelorette" contestant said on a podcast last month that, while Hyland is taking charge when it comes to wedding planning, they are planning on having a "gigantic" wedding.

Other stars who were at the 2019 Teen Choice Awards on Sunday night included Taylor Swift, Zendaya, Tori Spelling, John Stamos and KJ Apa.

See all of the red carpet looks from the 2019 Teen Choice Awards below: