It was written by Dominic Brownlee and Hi W. Jackson, and produced by Donald Sales and Da Beatfreakz.
It contains heavy production grounded by elements of synth, bass, snaps, and hi-hats, among other sounds.
The DJ Mustard-esque production is on point, there's a mid-song breakdown that's reminiscent of PC Music, and it works in almost any situation.
[6][7]In his review for PopBuzz, Liam Dryden stated: "There's no denying the song's a banger, but it feels like a whole other thing when you realize the singer is 11 years old and looks as though she's been lifted straight out of an ad for Lelli Kelly shoes".
"[11] In the United States, "Best Friends" debuted at number 87 on the Billboard Hot 100 on week ending January 24, 2015, becoming Grace's first ever entry on the chart.