 Outside of music, the Temptations were made honorary members of Phi Beta Sigma fraternity.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.The other members slowly became irritated and annoyed with Ruffin's behavior.