Beach Bunny is an American rock band formed in 2015 in Chicago, Illinois. Initially a solo project by guitarist and vocalist Lili Trifilio, Beach Bunny became a full band in 2017. The group achieved widespread popularity after their 2018 song "Prom Queen" went viral on TikTok in late 2019. Their 2020 song "Cloud 9" also went viral on TikTok in 2021.