M.A.R.S. was a short lived American traditional/power metal band from Los Angeles, California. It consisted of Rob Rock, Tony MacAlpine, Rudy Sarzo and Tommy Aldridge. The name of the group being made up of the initial of each musician's last name. They released only one album called Project : Driver in 1986. This Sarzo-Aldridge project was originally called Driver and had a different lineup, not to be confused with the other Driver of the late 80's, also featuring Rob Rock.