Source: http://en.wikipedia.org/wiki/J._J._Johnson
*1924-01-22, † 2001-02-04
J.J. Johnson (January 22, 1924 – February 4, 2001), born James Louis Johnson and also known as Jay Jay Johnson, was an American jazz trombonist, composer and arranger. Johnson was one of the earliest trombonists to embrace bebop.