Complex was a Japanese rock duo composed of guitarist Tomoyasu Hotei and singer Koji Kikkawa. They released their self-titled debut in 1989, along with their first single and video, "Be My Baby". After a tour to promote the album, they released its follow-up, Romantic 1990, followed by a live album, 19901108 a year later.The concert immortalized on the 19901108 CD and video turned out to be their last.