Xiao is the the stage name of Lee Dong Yeol, a South Korean singer. Born on December 13, 1998, Hwanhee is a vocalist and the youngest member of the K-pop boy group UP10TION, which debuted in 2015. In 2017, Xiao starred in “UP10TION Please,” a Soompi Original series where the members of UP10TION compete in fun challenges.