M.A.R.S. is a Heavy metal supergroup. The band's name is made up of the initial of each musician's last name: guitarist Tony MacAlpine, drummer Tommy Aldridge, singer Rob Rock and bassist Rudy Sarzo.
Tony MacAlpine on guitars and keyboards, Tommy Aldridge (Ozzy Osbourne, Pat Travers, Whitesnake) on drums, vocals by Rob Rock (Impelliteri), Rudy Sarzo (Ozzy Osbourne, Whitesnake) on bass. These long-awaited super sessions feature incredible guitar playing, thunderous rhythm-section work, and intense vocals.