 1983's Sexual Healing by Marvin Gaye. His total of 40 top 40 hits places him at number nine in our countdown. These are the long-distance runners on records, hitting big for three decades, the nonstop triathlon of rock and roll. I'm Casey Kasem. Now we're up to a man best known for singing with two of his younger brothers. Their three-part harmonies first came around in 1967.