It was released as the lead single from the repackaged version of their second studio album Glitch Mode (2022) on May 30, 2022, alongside an accompanying music video.

The song was written by Jeong Ha-ri and was composed by Brice Fox, Emily Kim, Jurek Reunamaki, and Michael Jade, who worked on the arrangement with Imlay.

NCT Dream was set to perform the song on several South Korean television shows, but had to cancel due to two members testing positive for COVID-19.

[8] "Beatbox" was written by Jeong Ha-ri and was composed by Brice Fox, Emily Kim, Jurek Reunamaki, and Michael Jade, who worked on the arrangement with Imlay.

[25] Multiple critics commented positively on "Beatbox" and its place in NCT Dream's discography, saying that it embodies the group's "youthful" concept.

[27] Lee Min-ji of Newsen pointed out how NCT Dream first introduced old-school hip-hop songs like "Beatbox" in their discography in 2018 with their single "We Go Up" and praised this choice, as it fits them well.

[28] A music critic writing for Weekly Donga said that, while K-pop acts often use the 90s' aesthetic and musical themes, NCT Dream managed to be original by creating a song with a modern R&B and teen pop sound that includes popular elements such as a whispered hook, while keeping the lyrical themes of the period.