The song was released on January 31, 2019, by Atlantic Records, along with its music video, as the then-lead single from Brooke's upcoming debut solo album.

[1] The song has a no rap version that's played on some radio stations[2] and which was performed on 2019 Kids Choice Awards' Orange Carpet.

[4] "Low Key" was introduced to her by her manager, who told her if her label executives could secure the track it would be her first single.

[6][7] In the week of the single's premiere, snippets of the song, behind the scenes photos, stills, and a preview of the music video were released on Brooke's social media pages.

[11][12][5] Brooke said the lyrics refer to a flirtation with another person, asking them to get to know her, and they also represent her introduction to the world as a solo artist.