Initially a solo project by guitarist and vocalist Lili Trifilio, Beach Bunny became a full band in 2017.

[5] Beach Bunny began as a bedroom-based solo project in 2015 when Lili Trifilio recorded a song titled "6 Weeks".

[8] In 2017, she released her third EP titled Crybaby, and Beach Bunny expanded to a full four-piece lineup shortly after.

[9][10][11][12] On October 31, 2019, Trifilio and the band announced that they had signed to Mom + Pop Music and released their first full-length album, Honeymoon, on February 14, 2020.

Honeymoon was met with widespread critical acclaim, appearing on the Best Albums of 2020 lists in both The New York Times, and Rolling Stone.