Moon Martin (born John David Martin in 1950, in Oklahoma, U.S.) is a singer and songwriter. Originally a rockabilly artist, Martin is best known for writing the songs "Bad Case of Loving You (Doctor, Doctor)", made famous by the English singer Robert Palmer, and "Cadillac Walk", made famous by the American singer Willy DeVille. Martin gained recognition in the 1970s as a pop artist and composer. He was given the nickname "Moon" because many of his songs had the word "moon" in the lyrics. He also scored two minor hits of his own with the song "Rolene" in 1979 and "X-Ray Vision" in 1982; the latter was an early MTV hit music video. His manager in the prime of his career was Ron Henry.