In 1972, Gamble & Huff, a team of producers and songwriters with whom The O'Jays had been working for several years, signed the group to their Philadelphia International label. With this magic formula, often called The Sound of Philadelphia, The O'Jays scored the first No. 1 and million-seller, "Backstabbers." Subsequently, they succeeded with various chart-topping pop and R&B singles including "Put Your Hands Together" and "For The Love of Money," both found on the Rock & Roll Hall of Famer's platinum-certified 1973 album Ship Ahoy, an equally sentimental and socially conscious affair with first-rate harmonies and sterling arrangements.