Cheng Xiao (born July 15, 1998) is a Chinese singer, dancer and actress best known for being a member of the South Korean girl group WJSN.
Known For: Acting
Birthday: 1998-07-15
Place of Birth: Shenzhen,Guangdong Province,China
Also Known As: 程瀟, 程潇, 성소, SUNG So, 우주소녀, WJSN, Xiao Cheng, ソンソ