Jimi Hendrix, 1942-1970, is a rock-'n'-roll legend. Although his mainstream career spanned only four years, he is widely regarded as one of the most influential electric guitarists in the history of popular music, and one of the most celebrated musicians of the 20th century. About Janie Hendrix: Janie Hendrix is Jimi Hendrix's sister and is in charge of his estate. About John McDermott: John McDermott is an author and filmmaker. Both Janie Hendrix and John McDermott work for Experience Hendrix, LLC, the exclusive copyright holder to all Hendrix material.