Emerson, Lake and Palmer founding member Greg Lake died yesterday at the age of 69.
The British supergroup were one of the most famous of the 1970s and are still widely regarded as the founding fathers of progressive rock.
Lake's death was confirmed by his manager Stewart Young, who said the singer and bass player passed away after "a long and stubborn battle with cancer".
Writing on the Emerson, Lake and Palmer Facebook page, Young wrote: "Yesterday, December 7th, I lost my best friend to a long and stubborn battle with cancer. Greg Lake will stay in my heart for ever, as he has always been."
Lake's death comes almost exactly nine months after fellow bandmate Keith Emerson died at 71.