It's hard to think of a more quintessential pre-disco-era supergroup, and this really is the ultimate collection of the Jackson 5's finest. From the super-sweet "I'll Be There" (which went on to become one of the most-covered songs in recent history) to the peppy pop of "I Want You Back," the period's essence is in every single high note. The Afros, the bell-bottoms, Michael pre-identity crisis, it's all there and so much more fun than anything any of the clan has done since. This is a great party album: classics like "ABC," "Never Can Say Goodbye," and "Rockin' Robin" sit alongside more jazz-influenced tracks like a cover of the Isleys' "It's Your Thing," and are guaranteed to keep all feet on the dance floor. --Rebecca Wallwork