John Mayer at Age 16 – Who Knows (Jimi Hendrix cover) Jan 19, 2018 16, Cover, Cover 16, Cover Dance, John Mayer 1994 Demo. Like 0 Thanks! You've already liked this « John Mayer – Age 16 – Axis Bold As Love ( Jimi Hendrix cover) » Cosmic Factory – Voodoo Child (Slight Return) [Jimi Hendrix cover, Live 5/14/17]