Amy Winehouse has undergone further tests in hospital as speculation continues that she may have to pull out of two major concerts next week.
The 24-year-old is due to play the Nelson Mandela 90th birthday concert in Hyde Park next Friday and Glastonbury next Saturday.
But she is awaiting the results of tests at a London hospital after she fainted at home earlier this week.
A spokesman said last night: "Amy has undergone more scans and tests today and we are awaiting the verdict of her doctors."
He continued: "At present, she still intends to perform at the two scheduled dates next week."
The spokesman added: "However, a decision will be made entirely upon the advice of her doctors and in her best interests."
