Paul McCartney
The Beatles seemed to function harmoniously, but just like every other band of superstars, they constantly battled for control over one another. Fortunately, they were able to function harmoniously despite voicing their differences. Paul McCartney was able to breathe soul into the Beatles in everything he did, and his solo career has been equally as successful as his work within the most legendary pop band of all time.
Bob Marley
Marley was a man of many talents. In addition to being a world-class musician, his ability to congregate like-minded individuals to promote peace and kindness was unparalleled by virtually every other musician who walked the Earth. However, his dedication to his religion eventually proved to be his downfall. Marley contracted melanoma that grew on his toe early on in his career. Marley refused to remove the toe because one of the principles of Rastafarianism states that removing a body part is a cardinal sin. The message behind Marley's music is still prominent in our culture. His promotion of peace and equality speaks volumes to the current state of politics.