Gackt Camui (神威 楽斗 Kamui Gakuto, born July 4, 1973), known mononymously as Gackt, is a Japanese musician, singer-songwriter, actor, and author. He has been active since 1994, first as the frontman of the short-lived independent band Cains:Feel, then for the now defunct visual kei rock band Malice Mizer, before starting his solo career in 1999. He has released nine studio albums and, with forty-two singles released, holds the male soloist record for most top ten singles in Japan music history. His single "Returner (Yami no Shūen)", released on June 20, 2007, was his first and only single to reach the number one spot on the Oricon charts. He became the first Japanese artist to release his music catalog on iTunes in October 2007.