Johnnie and Joe were an American rhythm and blues duo popular in the 1950s and 1960s, consisting of Johnnie Louise Richardson and Joe Rivers. Their distinctive style mixed doo-wop harmonies with a soulful rhythm and blues sound, cementing their place in music history. Their most influential work is the hit single "Over the Mountain; Across the Sea", which reached No. 8 on the Billboard Hot 100 in 1957. Johnnie and Joe's music remains a significant contribution to the classic R&B genre.