Rivaled only by the Spinners as soul's greatest vocal group of the '70s, the O'Jays were one of the most popular and lasting R&B outfits. The O'Jays' prime recordings epitomize the Philly soul sound: smooth, rich harmonies backed by elaborate arrangements, lush strings, and a touch of contemporary funk. They worked extensively with the legendary production/songwriting team of Kenny Gamble and Leon Huff, and were the flagship act of the duo's Philadelphia International label with Top Ten pop hits such as "Love Train," "For the Love of Money," and "I Love Music," all three of wh...