JACO PASTORIUS This image was originally posted to Flickr by Chris Hakkens at https://www.flickr.com/photos/39072523@N02/4636523644. Wiki: https://commons.wikimedia.org/wiki/File:Jaco_Pastorius_with_bass_1980.jpg. It was reviewed on 31 May 2010 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. License: https://creativecommons.org/licenses/by/2.0/deed.en. No changes made.
JAMES JAMERSON Wiki: https://commons.wikimedia.org/wiki/File:James_Jamerson.jpeg. 24 April 2014. Author: Experimento69. License: https://creativecommons.org/licenses/by-sa/3.0/deed.en. No changes made.
JOHN ENTWISTLE John Entwistle bass player for The Who performing at The Concert for New York City at Madison Square Garden in New York City, 10/20/01. The show will benefit victims of the World Trade Center disaster. Photo by Scott Gries/Getty Images (Scott Gries/Getty Images)
JOHN PAUL JONES READING, ENGLAND - AUGUST 27: John Paul Jones joins Seasick Steve as he performs live on the Main Stage during day two of Reading Festival 2011 on August 27, 2011 in Reading, England. (Photo by Simone Joyner/Getty Images) (Simone Joyner/Getty Images)
CHRIS SQUIRE LOS ANGELES, CA - MARCH 14: Drummer Martyn Adelman (L) and bassist Chris Squire (R) of The Syn perform at the "Evening with Ray Kennedy and Friends" hosted by the Guitar Center Music Foundation at the Avalon on March 14, 2006 in Los Angeles, California. (Photo by Michael Buckner/Getty Images) (Michael Buckner/Getty Images)
PAUL MCCARTNEY circa 1960: Paul McCartney on stage at the Cavern nightclub in Liverpool during the early days of British beat group The Beatles. (Photo by Keystone/Getty Images) (Keystone/Getty Images)
JACK BRUCE NEW YORK - OCTOBER 25: Jack Bruce of Cream performs onstage at Madison Sqaure Garden October 25, 2005 in New York City. (Photo by Scott Gries/Getty Images) (Scott Gries/Getty Images)
GEEZER BUTLER LOS ANGELES, CA - SEPTEMBER 24: Geezer Butler, ofBlack Sabbath performs at Ozzfest 2016 at San Manuel Amphitheater on September 24, 2016 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images for ABA) (Frazer Harrison/Getty Images)
MARK "THE ANIMAL" MENDOZA FREEHOLD, NJ - MAY 11: Mark "The Animal" Mendoza of Twisted Sister performs during the Rock N' Roll Heaven And Old Bridge Metal Militia Reunion & Superstorm Sandy Benefit Concert at the Encore Event Center on May 11, 2013 in Freehold, New Jersey. (Photo by Theo Wargo/Getty Images) (Theo Wargo/Getty Images)
GEDDY LEE NEW YORK, NY - APRIL 07: 2013 Inductee Geddy Lee of RUSH performs with Yes onstage at the 32nd Annual Rock & Roll Hall Of Fame Induction Ceremony at Barclays Center on April 7, 2017 in New York City. Debuting on HBO Saturday, April 29, 2017 at 8:00 pm ET/PT (Photo by Mike Coppola/Getty Images) (Mike Coppola/Getty Images)