'I am still in need of rest:' Jessie J cancels gigs after falling ill with fatigue virus
23:47 GMT, 20 July 2012
No show: Jessie J has pulled out of a gig due to sickness
Thousands of music fans have been left disappointed after Pop singer Jessie J announced that she had pulled out of a festival.
The Domino singer was due to headline a concert at Northumberland's Alnwick Castle, but has been taken ill with cytomegalovirus (CMV).
The 24-year-old announced her withdrawal via her official website and left the estimated 12,000 ravers without an event.
She said: 'I have been diagnosed with a viral infection recently that has caused me to be extremely fatigued.
'I was hoping to be better but I have been to see my doctor this morning after not feeling great who has advised me I am still in need of rest and to perform will make me worse.'
The Voice judge was due to take to the stage on Saturday but, the event has now been rescheduled for 25 August.
KAL Music Limited, who organised the event, told the BBC: 'We would like to extend an apology to all concert ticket holders for any inconvenience caused.
Feeling bad: Jessie, pictured at Wireless Festival earlier this month, is suffering with cytomegalovirus
'We are hugely disappointed to have to cancel Saturday's performance, but are pleased to have already confirmed an alternative date for the concert to go ahead.'
Their spokesman added: 'We hope that all ticket holders will be able to attend what is sure to be an incredible event. We wish Jessie J a speedy recovery.'
Her sickness has also forced her to cancel a headlining slot at Ponty's Big Weekend music event in Pontypridd, south Wales.
feeling blue: The Domino singer has been told be her doctor to get plenty of rest