Bee Gees singer Robin Gibb has died after a long battle with cancer.
In a statement, Gibb's family announced his death with "great sadness".
Gibb, 62, who had undergone intestinal surgery, notched up dozens of hits with brothers Maurice and Barry - as performers and writers - and sold more than 200 million records.
"The family of Robin Gibb, of the Bee Gees, announce with great sadness that Robin passed away today following his long battle with cancer and intestinal surgery. The family have asked that their privacy is respected at this very difficult time," the statement released on Sunday said.
The Bee Gees' song catalogue, which includes Massachusetts, I've Gotta Get A Message To You, Lonely Days, How Can You Mend A Broken Heart, How Deep Is Your Love and Stayin' Alive, led to their induction into both the Rock and Roll Hall of Fame and the Songwriters Hall of Fame.
Gibb's twin brother Maurice died of a heart attack in 2003 following intestinal surgery.
Broadcaster Paul Gambaccini said Gibb was "talented beyond even his own understanding".
"Everyone should be aware that the Bee Gees are second only to Lennon and McCartney as the most successful songwriting unit in British popular music," Gambaccini said.
"Their accomplishments have been monumental. Not only have they written their own number one hits, but they wrote huge hit records for Barbra Streisand, Diana Ross, Dionne Warwick, Celine Dion, Destiny's Child, Dolly Parton and Kenny Rogers, the list goes on and on.
"What must also be said is Robin had one of the best white soul voices ever. He was singing lead on his first number one when he was 17, that was Massachusetts."
The star fell into a coma last month after contracting pneumonia but his family later said he had "beaten the odds" just days after doctors said he "was in God's hands".
At the time, his son Robin-John Gibb said his father was "completely compos mentis".
Doctors said they were "confounded" by Gibb's progress after he was given a 10 per cent chance of survival.
His family maintained a bedside vigil while he was been treated at a central London hospital.
Gibb's relatives sang to him and wife Dwina said that he had cried when she played him the song Crying by Roy Orbison.
Gibb had surgery on his bowel 18 months ago for an unrelated condition but a tumour was discovered and he was diagnosed with cancer of the colon and subsequently of the liver