Due to health issues, Mariah Carey is canceling 2 of her Christmas concerts. Mariah Carey was scheduled to perform at Caesars Windsor, then she was off to Chicago for a performance until Mariah tweeted... Unfortunately for those in Michigan and Canada, the Doctors okay will not come in time for the November 17th and 18th shows. Mlive is reporting that... The show had been scheduled for Friday, November 17, 2017.