Sex & Religion is the third solo studio album by American guitarist Steve Vai, released under the band name "Vai" on July 27, 1993, through Relativity Records. It is known as the first major appearance of Devin Townsend, who performed vocals for the album and went on to fame with Devin Townsend Project and Strapping Young Lad. Townsend also co-wrote the tracks "Pig" and "Just Cartilage", the latter of which was only released as a bonus track in Japan. Vai also co-wrote "In My Dreams with You" with Desmond Child and Roger Greenawalt.

Sex & Religion reached No. 48 on the U.S. Billboard 200, "In My Dreams with You" was released as a single, reaching No. 36 on Billboards Mainstream Rock chart. The band split up after the album was finished, and Vai subsequently toured only with Townsend and several session drummers and bassists (including Abe Laboriel Jr., Toss Panos, and Scott Thunes).

Critical reception