53 years ago today (7/16/66), Eric Clapton, Jack Bruce and Ginger Baker formed the supergroup Cream. Regarded as the first band of soloists, in their two-year career they brought the blues to a whole new realm and became the first “power trio.” Many regard Cream as the first in the lineage of heavy metal with their fast and loud supercharged blues that would later be picked up some by Black Sabbath. Watch the trio lay down this heavy version of “Spoonful” from 1967. Watch the trio perform “I’m So Glad/We’re Going Wrong/Ginger Baker Drum Solo” live in 1968…