Leroy "Gilbert" Hamilton (August 15, 1931 – September 6, 2024), known as Johnny Thunder, was an American R&B and pop singer whose biggest hit was "Loop de Loop" in 1963. == Life and career == Leroy Hamilton was born in Okahumpka, Florida, on August 15, 1931, and started singing in church and on street corners when in his teens. In 1951 he left his small town to attend Florida A&M (FAMU) in Tallahassee. At that time he took on the... [more on Wikipedia]