Jessie J pulls out of Big Weekend
Jessie J has pulled out of a headlining show on medical advice after being diagnosed with a "fatigue" virus.
The singer apologised to fans for cancelling her Friday night show in Pontypridd, Ponty's Big Weekend, which has prompted the first night of the three-day event to be axed.
Show bosses said the singer is suffering from cytomegalovirus (CMV) which they said had caused her "considerable fatigue".
In a message on her website Jessie 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."
Jessie, a judge on BBC1 talent series The Voice, said she wanted to "personally apologise" to fans and was "just not well enough" to appear. "Back to bed I go - so sorry," she added.
The Price Tag star had to cancel a number of shows last summer after damaging her ankle during a fall.
CMV is said to be a common virus with no cure. Fans have been told they will get their money back.
Further shows starring Olly Murs and Alfie Boe over the weekend are unaffected.