Lexie Liu, also known as Liu Boxin, 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 won 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". In 2022, Liu released her album The Happy Star.

The Rap of China, formerly known as, is a Chinese rap competition show produced by iQiyi. The show was carried out in the form of three groups of producers Kris Wu, Will Pan, MC HotDog and Chang Chen-yue judging the performance of the participating students, and received great attention. In the end, after fierce competition among players and difficult choices of producers, China's hip-hop first season produced two annual championships, GAI (musician) and PG ONE.