"I am absolutely GUTTED to announce that tomorrow's show, March 23rd (Friday) will be postponed," the 38-year-old What About Us singer wrote in a statement. "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."
Pink said that her "entire family have been battling this awful virus/flu for two weeks now, and I have battled my way through these shows because postponing sucks. I'm really sorry and know that I have done everything I could to avoid this."
Pink's husband, Carey Hart, had also been "sent home with the flu," with their children Willow, 6, and Jameson, 1, are suffering from the illness too.
"I wish anyone out there going through this healing vibes and big hugs," she concluded.
The news comes after Pink revealed in February that she was suffering from the flu before her national anthem performance at the Super Bowl.