KC and the Sunshine Band's biggest hits defined disco, but other tracks flesh out their wide array of influences, which include classic soul (their upbeat cover of The Four Tops' “It's the Same Old Song”), reggae (the dreamy “Come to My Island”), and stretched-out lovers' funk (the woozy come-on “All I Want”). They've kept the party going in the 21st century with electro-tinged throwdowns like “All That Good Stuff.”