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 (born April 24, 1982, Fort Worth, Texas, U.S.) is an American singer, songwriter, and TV personality who emerged as a pop-rock star after winning the popular television talent contest American Idol in 2002., Kelly Clarkson's highly anticipated Las Vegas residency opening was postponed hours before showtime because the singer needs vocal rest after demanding preparations., Kelly Clarkson revealed she is 'devastated' as she shared a health update with fans just hours before her Las Vegas residency, Kelly Clarkson left fans stunned and heartbroken after canceling the opening two nights of her highly anticipated Las Vegas residency., .