Duan Xingxing is a Chinese singer and dancer. In 2021, he participated in Youth with You 3, under a company called M-Nation and has now debuted as a member of the group IX FORM. He is a part of Shadow Dance. Duan Xingxing is a Chinese singer and dancer. In 2021, he participated in Youth with You 3, under a company called M-Nation and has now debuted as a member of the group IX FORM. He is a part of Shadow Dance.