The song's lyrics refer to a man who was an "underwhelming lover"[3] whom Doja Cat feels "never deserved her attention".

[4] Produced by Rogét Chahayed and Yeti Beats, it samples Shonka Dukureh's recording of the song "Hound Dog", which was written by Jerry Leiber and Mike Stoller, first recorded by Big Mama Thornton (who Dukureh plays in the film) in 1952 and notably covered by Presley.

[5] Writing for Consequence, Carys Anderson felt that Doja Cat "lives up to the challenge" of Luhrmann "pairing historical content with modern music", calling it "Ain't Shit" meets "Hound Dog".

[3] "Vegas" peaked at number ten on the US Billboard Hot 100, becoming Doja's seventh top-ten single.

[7] Prior to its official release, Doja Cat performed "Vegas" for the first time during the 2022 Coachella Valley Music and Arts Festival.