Here is a really interesting song with an even more interesting back story. Earl Hooker and his band recorded an instrumental that was called "Blue Guitar" in 1961. Actually, the song was a "warm-up" that the Hooker band was doing before starting a recording session. The sound engineer for Chief records recorded it , however, and it was put out as a single. A year later Leonard Chess (Chess records) approached Mel London of Chief about using the instrumental, and subsequently had Willie Dixon write lyrics. Muddy Waters then over-dubbed the vocals (his first time doing this), and "You Shook Me" was born.