The Marvelows were an American soul group from Chicago, active during the 1960s. Known for their R&B-infused style, they made significant contributions to the genre with their harmony-rich sound. Key members included lead singer Johnny Paden and songwriter Melvin Mason, who co-wrote their biggest hit, "I Do", a staple of Northern Soul that reached number 7 on the R&B charts in 1965. Though their career was relatively brief, The Marvelows left a lasting impact on the world of soul music.