The singer was readmitted to hospital on Monday.
Pink has been forced to postpone a third Sydney concert, scheduled to go ahead tonight, after being readmitted to hospital on Monday with a gastric virus.
The US singer called off her Monday night concert just hours before it was to go ahead and has this morning called off another show tonight.
"On medical advice P!NK’s performance scheduled for tonight (Tuesday, August 7) at Sydney’s Qudos Bank Arena has been postponed," a statement from her Australian tour promoter reads.
"Pink was admitted to St. Vincents Hospital in Sydney on Sunday night, suffering from dehydration. She was treated and discharged.
"She was readmitted to hospital on Monday and diagnosed with a gastric virus.
"On medical advice Pink remained in hospital overnight, continuing her treatment and recovery. She will be reassessed by her doctors today."
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Pink is currently scheduled to perform at Qudos Bank Arena on Thursday night, however the promoter has advised that "a further announcement will be made when an update becomes available".
It is the third Sydney show that has had to be postponed after Pink also called off a performance last Friday.