Xiao Dejun, known by his stage name Xiao Jun, is a Chinese singer born in Guangdong on August 8, 1999. He is the main vocalist of WayV. He was a contestant on the show "X Fire" in 2015, and was an SM Rookies in 2018. His brother and father are also part of the music industry. He can play guitar, piano, drums and ukulele.