Complex sentence: In 1980, to increase their chances of landing a recording contract with a major label, the band recorded a single called "Dr. Rock"/ "Drivin' on E", which was given to fans at their early Los Angeles club shows.
Split into simpler sentences: In 1980, Increase their chances of landing a recording contract with a major label. The band recorded a single called "Dr. Rock"/ "Drivin' on E", which was given to fans at their early Los Angeles club shows.