The UV77 is a seven-string solid body electric guitar model introduced by Ibanez in 1990. It is a signature model of American guitarist Steve Vai, and part of Vai's Universe series. The UV77 was available only in a swirled Multi Color finish. A prototype of the UV77 MC appeared on the cover of Vai's 1990 masterpiece album, Passion and Warfare. This prototype actually featured a monkey grip like Steve's JEM guitars, but the grip was edited out of the picture and all regular production UV's were 'gripless'.