Lexie Liu, also known as Liu Boxin (Chinese: 刘柏辛; pinyin: Liú Bóxīn; born December 21, 1998), is a Chinese singer, rapper and songwriter. In 2015, she participated in K-pop Star 5, a South Korean reality TV competition series where her group came in fourth place. In July 2018, she participated in The Rap of China and finished fourth place, which launched her career as a solo artist. In February 2019, Liu released her debut EP 2030. She also featured as Seraphine in the K/DA song "More". She followed her debut EP with the album Meta Ego in 2019. In 2021, she released her EP Gone Gold, and in 2022, Liu released her album The Happy Star.