With his smooth and soulful voice, Billy Joe Royal was a standout vocalist who uniquely blended elements of pop, rock, and Southern soul. The song "I Knew You When," released in 1965, was one of his biggest hits and has become a pop ballad classic. The song was written by Joe South, a talented songwriter and producer who also penned hits for other artists. "I Knew You When" was released as a single in 1965. Billy Joe Royal was the performer of this song. The song achieved significant success on