50th anniversary of the legendary Philadelphia International Records label founded in 1971 by innovative and prolific songwriters/producers Kenneth Gamble and Leon Huff. This superb compilation showcases the sophisticated sound associated with the label also known as 'The Sound of Philadelphia'. Featuring the legendary roster of music stars who helped bring these chart topping disco, R&B, soul and funk sounds to life including The O’Jays Patti LaBelle, Harold Melvin & The Blue Notes, Billy Paul, Teddy Pendergrass, Lou Rawls, McFadden Whitehead, The Three Degrees, Phyllis Hyman, The Intruders and the ultimate 'house band' MFSB. A 12 song album pressed on a standrad single black vinyl. Marketing.