Acid Android (stylized as ACID ANDROID and formerly as acid android) is the solo project of yukihiro, drummer of the Japanese rock band L'Arc-en-Ciel. While yukihiro provides the vocals and many of the instruments himself, he also utilizes many support and guest musicians both in the studio and in live performances. The project is signed to yukihiro's Tracks on Drugs record label. To date Acid Android has released four albums and two mini-albums. The band, in contrast to L'Arc-en-Ciel, uses a harder, faster sound, more stage-lighting and mechanics to further energize their concerts.

Source: Wikipedia (https://en.wikipedia.org/wiki/Acid_Android)