Lee Shi Ah is a South Korean actress and singer. She was born in Seoul, South Korea, on July 10, 1990 and made her debut in the entertainment industry in 2011 as a member of the K-Pop girl group,Chi Chi. After the group disbanded in 2013, she turned to acting, taking roles in various films and television dramas, including “Signal” (2016), “Tunnel” (2017), “Let Me Introduce Her” (2018), and “365: Repeat the Year” (2020).