The 2017 ACM Awards kicked off with a superstar-studded medley: It was a collection of songs by this year's Entertainer of the Year nominees, Jason Aldean, Luke Bryan, Florida Georgia LineCarrie Underwood and Keith Urban.

Aldean got things rocking with "Lights Come On," and after his part, he said, "Y'all make some noise!" before introducing Bryan. Bryan took over with "Move," and he interacted with fans throughout his piece, giving them plenty of smiles (and hip swinging).

FGL slowed the medley down with "H.O.L.Y.," with Tyler Hubbard on the keys (of a white grand piano); the song was named Single Record of the Year prior to this year's ACMs, and the duo performed it flawlessly. Then, Underwood took charge of the stage in a silver mini dress, and her vocals soared during "Church Bells."

Urban closed things out: He performed among fans, playing his electric guitar and singing "Wasted Time."

See Pics From 2017 ACM Awards Rehearsals, Pre-Show Interviews

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