"I am absolutely GUTTED to announce that tomorrows show, March 23rd (Friday) will be postponed. I will absolutely be back to perform for you all and I'm grateful for you wanting to come and be with us at all," she shared.
"Our entire family has been battling this awful virus/flu for two weeks now, and I have battled my way through these shows because postponing sucks."
She continued, "I'm really sorry and know that I have done everything I could to avoid this. Carey's been sent home with flu while me and the kids battle the virus. I wish anyone out there going through this healing vibes and big hugs."
This is the second time in recent weeks that the 38 year old has faced illness.
Last month she bravely sang the national anthem at the Super Bowl, despite battling the flu at the time.