Bring a Little Loving (1968)

Mike, the lead singer of the famous band "Los Bravos", is kidnapped by Chou-Fang, a follower of fearsome Fu-Manchu doctrines. Chou-Fang's goal is to dominate the world through a chemical formula whose secret is known by a retired scientist. The teacher's daughter, the beautiful Sao-Ling, believes that Mike is a superhero and involves him in a dangerous story.