"Promise" is the opening track from the American rapper Slayr's eighth extended play (EP), Avant Nova (2026.) The song contains elements from "The Peace" (2026), written by American musician Underscores.
Upon release, the song charted at 31 on the New Zealand Hot Singles chart, becoming his first song to chart in any country.
Composition and lyrics "Promise" is a two-minute-and-47-second song. Slayr co-wrote the song with Chris Marek, who helped co-produce it. Slayr handled the track's engineering, mixing, and mastering. The song contains elements from "The Peace" (2026), written by American musician Underscores. Like his previous tracks throughout his discography, "Promise" also features a music transition at the end of the track which seamlessly transitions into the next track.
Lyrically, the track focuses on Slayr reflecting on the butterflies that come with having a crush. In the first verse, he directly shouts out Underscores by her alias April and thanks her for clearing the sample, rapping that the two "should do some more" songs together.
Reception "Promise" received positive responses from music critics. Anthony Fantano of The Needle Drop described it as a "banger" and praised how it built on "The Peace", calling it his favorite track from the EP.
Charts + Chart (2026) Peakposition New Zealand Hot Singles (RMNZ) 31
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