OOIOO is a Japanese experimental rock band. The four-piece ensemble was founded by Yoshimi P-We, the drummer and occasional trumpeter for Boredoms. The band's origin lies in a photo shoot that Yoshimi was asked to do for a magazine. She invited a few of her friends to join her, and they created a fake band for the shoot, which they later decided to make real. The band quickly gained attention by being the opening act for Sonic Youth in 1997 on their Japan tour.