Monsters from Mars is an underground rock band from California, formed in 2001.

Originally an instrumental surf rock trio, the band has since grown in size and influences.

Sonically, the band's sound comes from its heavy use of spring reverb, tremolo-picked guitar leads, tube equipment, Farfisa organ, synthesizers, baritone guitar, theremin, tape delay effects, and occasional saxophone and prog rock drum solo.

The band's live show is distinguished by its high energy performances, use of theatrics, fog and colored light ambiance, and proclivity for inducing dancing among audience members.

Monsters from Mars is perhaps best known for its instrumental rendition of the Britney Spears hit, Toxic.