Complex sentence: By 1967, David Ruffin had begun demanding special treatment as lead singer, riding to and from gigs in a private mink-lined limousine with his then-girlfriend, Motown singer Tammi Terrell, instead of in the group limousine used by the other four Temptations.
Split into simpler sentences: By 1967, David Ruffin had begun demanding special treatment as lead singer. Riding to and from gigs in a private mink-lined limousine with his then-girlfriend, Motown singer Tammi Terrell, instead of in the group limousine used by the other four Temptations.