Under the Influence is the sixth studio album by American rock band Warrant released in 2001.

The album is the last to feature vocalist Jani Lane, as the band's next release - Born Again features Black 'n Blue vocalist Jaime St. James.

The band toured in support of the album with Poison in the summer of 2001 on the Glam Slam Metal Tour which was cut 3 weeks short due to back injuries sustained by Poison bassist Bobby Dall.

[3] The cover of AC/DC's "Down Payment Blues" features guitarist Billy Morris on lead vocals.

The album also features Mike Fasano, who became the band's newest in a long line of drummers.