The wife of hospital-bound Robin Gibb said the Bee Gees star has vowed never to give up on his fight for life.
The singer has amazed doctors with his fightback following treatment for cancer, intestinal surgery and a bout of pneumonia which put him in a coma for several days.
Dwina Gibb told The Sun the star had told doctors he wanted to live "no matter what" - despite being given little chance of pulling through his medical procedures.
During one recent bout of treatment he was given only a 10% chance of pulling through an operation on a perforated bowel.
She said: "The doctors asked Robin if he wanted them to do everything in their power to save his life - or if he felt the time would come when enough was enough.
"He told them: 'There will never be a time when enough is enough. I want to live, no matter what.'"
Robin, 62, fell into a coma a fortnight ago and former prime minister Tony Blair was one of the last people to speak to him by phone before he did so.
The chart-topping star, whose family has been keeping a bedside vigil, eventually regained consciousness while he was being played a recording of his latest composition Titanic Requiem.
His wife told the newspaper: "We have to take each day as it comes. Robin has been seriously ill. Every time I go to see him, I am so happy to be there, so happy to see him with his eyes open and talking."