There are several artists called Riddle: 1) RIDDLE is a japanese rock band formed on May of 2003. they longed for oversea bands...and they had first show on July. in October　of 2003, they released 1st DEMO-CD.(sold 1,500 copies) in April of 2005, they released 1st Mini Album 「soundview」from RX-RECORDS. and they offered two new songs to RX-RECORDS V.A album . in December of 2005, they released limited single(sold out!!) including "DREAMS COME TRUE" (famous Japanese group) cover song.