Katy Perry was forced to cancel a pair of concerts for Friday and Saturday after suffering a bout of food poisoning and severe dehydration, announced her official website.

The concerts have been rescheduled for next month, which were to occur in Chicago and St. Paul. The Teenage Dream fought through the illness to announce the new dates on Twitter on Friday, writing, Chicago and St. Paul -- I'm so sorry to have to postpone today and tomorrow's shows. But I'll be back 8/21 (CHI) and 8/23 (St. Paul)!

I am going to return in a few weeks to give them the very best show ever! Perry noted in a statement.

Perry's next concert is scheduled for Regina, Saskatchewan, on Wednesday.