Guan Chai is part of the Japanese dancehall reggae collective Mighty Crown Family. LIFE STYLE label, FIRE BALL / PAPA B's album, and also Mighty Crown produced albums has also Guan Chai's hand in it as a Track Maker. Guan Chai has also teamed up with SAMI-T (Mighty Crown) as TC MOVEMENTS and made remixes for artists such as ZEEBRA and so forth. Guan Chai's multi-talent in the reggae field has also expanded him as being in FIRE BALL's original band JUNGLE ROOTS, and at lives, he works as a MPC operator and tours with the group.