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TRF stands for Tetsuya Komuro Rave Factory, and was, of course, founded by famed producer Komuro Tetsuya. YU-KI has has done some solo work, and DJ KOO has collaborated with many other of Kumoro's projects (including H Jungle With T). SAM was also married to superstar Amuro Namie, for a time. They had a child together, before getting divorced.