Troubled songress Amy Winehouse is set to cancel her appearance at Glastonbury.

Winehouse was taken to hospital by her father on Monday after collapsing at her home. Doctors were unable to find out why she fainted and she remains hospitalised.

'Staying put'

Her father, Mitch, told reporters that his daughter was "staying put" until they found out what was wrong with her.

Earlier in the month the Rehab star produced an erratic performance in Lisbon were she shook and warbled on stage with a bloodied fist.

Fans put off

The iconic three day music and arts festival in Glastonbury has had difficulties shifting tickets to an event that usually sells out in seconds. Fans were worried that Winehouse wouldn't show on the 26 June.

Her appearance at Nelson Mandela’s 90th birthday show in Hyde Park is also in doubt, coming the day after her Glastonbury slot. Last year she cancelled several festival appearances.