Maren Morris walked the 2019 iHeartRadio Music Awards red carpet on Thursday (March 14) in a plunging rainbow-encrusted mini-dress. Fresh off the release of her sophomore album Girl, she looked — and seemed to be feeling — in her element.

She had a reason: Morris led the country music's nominees going into the awards show with four total, appearing in both mainstream non-country categories including Song of the Year. Morris' nominations included: Song of the Year for "The Middle," her collaboration with Zedd and Grey, which also earned her hat tips for Best Collaboration and Dance Song of the Year.

Watch Maren Morris Duet With Surprise Guest Miranda Lambert at Nashville Show

She also scored a nom for Best Country Song for "Rich" and was there to present her friend Taylor Swift with the Tour of the Year award. Onstage, she recounted her experience of performing with Swift, saying, "When her reputation tour came to Texas, Taylor was kind enough to invite me on stage to do a song with her in my hometown of Arlington. When it came time to perform it was just me her and like 100,000 people. Sharing that moment with a sea of faces vibing along with us was a thrill of a lifetime."

She admitted, however, that Swift's big snakes still give her nightmares. Morris' new single "Girl" is at country radio now."

More 2019 iHeartRadio Music Awards Red Carpet Pictures: