22 April 2012 Last updated at 14:27 ET
Doctors treating Bee Gees star Robin Gibb say they have been "confounded" by his recovery since waking from a coma.
The singer's physician Dr Andrew Thillainayagam said he was conscious, lucid and talking to his loved ones, at The London Clinic in central London.
He said the "exhausted" star had shown "extraordinary courage, iron will and deep reserves of physical strength".
Gibb, 62, fell into a coma last week after contracting pneumonia in his battle against colon and liver cancer.