Hailing from Ostia, a town near Rome, Zu are an atypical trio made of drums, electric bass, baritone saxophone and electronics. Formed in Rome in 1997, they began as composers and players for theatre performances. The band is composed of three members: Luca Mai on baritone saxophone, Massimo Pupillo on bass and Jacopo Battaglia on drums. Zu have released fourteen albums, including two live album and two splits, and played in festivals in Europe, America, Asia and Africa. In 2006 the band toured with the Fantômas Melvins Big Band, a superband which is a fusion of Fantômas and the Melvins. As of 2011, Gabe Serbian (Ex-Cattle Decapitation, Ex-Locust) performs on drums with the band.
The band are members (except for Serbian) of the Italian folk-jazz group Ardecore.