'The legend of the groove' is a series of documentaries devoted to the musicians who were most influential on contemporary hip hop, soul, rhythm 'n' blues, and on the course of history. Between the late 1950s and now, these musicians radically changed music. Although sometimes hardly in the public eye, they have all been major sources of inspiration for today's major artists: Prince, Erykah Badu, Janis Joplin and Jimi Hendrix.