"Reunited" was a hit song for R&B vocal duo Peaches & Herb. As the second single release from their 1978 album, 2 Hot, the song was a huge crossover smash, topping both the pop and soul charts. It spent four weeks at number one on both the R&B singles chart and the Billboard Hot 100 singles chart in 1979 and sold over 2 million copies. Billboard ranked it as the No. 5 song for 1979. In Canada, "Reunited" likewise reached number one and was the No. 9 song for the year.

The song was written by Dino Fekaris and Freddie Perren, and was the sequel song to the duo's 1968 hit "(We'll Be) United", which was itself a cover of The Intruders' original 1966 hit.

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