Kelly Clarkson, the "American Idol" alum turned music industry superstar, is sharing why she canceled the opening night of her Las Vegas residency.

Kelly Clarkson has postponed the opening weekend of her Studio Sessions residency in Las Vegas to rest her voice: 'I am devastated.'

I am devastated to have to postpone tonight and tomorrow’s opening at Caesars. The prep and rehearsals have taken a toll on my voice,” she wrote in a statement shared on Instagram Friday.