Byun Sung Tae, known simply as Sungtae, is a South Korean actor and singer. He graduated from Jinwang High School. In 2017, he participated in "MIXNINE" under ASTORY Entertainment but was eliminated in the preliminary audition and did not make the broadcast. That same year, he featured in the MV of Iris's song "Me Too". In 2019, he entered "Produce X 101" now under Urban Works Entertainment but he was... see more