Recorded during the Bright Future sessions and originally only appearing on the Japanese CD release of the album, the track is seeing its wide release for the first time. Later this year, a 7” edition of "Once a Bunch" will be released via independent record stores.

Ahead of the release of Bright Future, Lenker released "Free Treasure", which followed previous singles, "Fool", "Ruined" and "Sadness As A Gift", and came after the surprise release of a Bandcamp exclusive EP with all proceeds being donated to Palestine Children’s Relief Fund. She also revealed that I Won't Let Go Of Your Hand had raised almost $75k.