Acid Android (often stylized as acid android) is the solo project of Yukihiro, drummer of the Japanese rock band L'Arc-en-Ciel. They are signed to yukihiro's Tracks on Drugs label, a division of Ki/oon Records. Acid Android releases, as with the other L'Arc-en-Ciel members' solo projects, take place when they are on hiatus. To date Acid Android has released three albums, one mini album and EP, two singles, and three live DVDs. The band, in contrast to L'Arc-en-Ciel, uses a harder, faster sound, more stage-lighting and American and European-styled mechanics to further energize their concerts. The band made their debut with a self-titled album in 2002. The EP Faults features Toni Halliday on vocals and appeared in 2003. The album Purification was released in 2006 with other band members contributing to the songs. Two releases appeared in 2010, the album 13:Day:Dream and the seven-tack mini album Code.