1990 also saw the release of the Ibanez Universe seven-string guitar co-designed by Vai in conjunction with Ibanez. Vai left Whitesnake in 1990 to pursue his own musical avenues, and formed a band that included Devin Townsend on vocals, T. M. Stevens on bass, and Terry Bozzio on drums. The group released "Sex & Religion" on July 23, 1993, that was described as visceral in nature, combining a compositional and progressive metal rhythm section with Devin Townsend's vocal arrangements. After the following tour in support of the album, the group disbanded. Vai began working with Ozzy Osbourne in 1994, with whom he wrote and recorded the "Ozzmosis" album. Due to conflicts, the album was re-written and recorded with Zakk Wylde on guitar. In 1994, Vai won a Grammy award for his performance of "Sofa", from "Zappa's Universe".