John Weldon Cale (December 5, 1938 – July 26, 2013), known as JJ Cale or J.J. Cale, was an American singer-songwriter and musician who was one of the originators of the Tulsa Sound, a loose genre drawing on blues, rockabilly, country, and jazz influences. Cale's personal style has often been described as "laid back".

Songs written by Cale that have been covered by other musicians include "After Midnight" by Eric Clapton, Phish and Jerry Garcia, "Cocaine" by Eric Clapton, "Clyde" by Waylon Jennings and Dr. Hook, and "Call Me the Breeze" by Lynyrd Skynyrd, John Mayer and Bobby Bare. In 2008 he was a Grammy Award winner, jointly with Clapton.

http://en.wikipedia.org/wiki/J._J._Cale
http://www.jjcale.com/