Legendary supergroup Cream, which also included Eric Clapton and Ginger Baker, are now considered one of the most important bands in rock history.
They sold 35 million albums in just over two years and were given the first ever platinum disc for Wheels of Fire.
Bruce wrote and sang most of the songs, including "I Feel Free" and "Sunshine Of Your Love".
Born in the Glasgow suburb of Bishopbriggs in 1943, his parents travelled extensively in Canada and the USA and the young Jack attended 14 different schools.
He finished his formal education at Bellahouston Academy and the Royal Scottish Academy of Music, to which he won a scholarship for cello and composition.
He left the academy and Scotland at the age of 16 and eventually found his way to London where he became a member of the influential Alexis Korner's Blues Inc, where Charlie Watts, later to join the Rolling Stones, was the drummer.
He played in a number of bands throughout the early 60s, including John Mayall's Blues Breakers and Manfred Mann before joining Clapton and Baker in Cream.
