Kelly Clarkson and Shania Twain revealed their past onstage mishaps during the talk show host’s "The Kelly Clarkson Show" this week, and the "Because of You" singer, Clarkson, first admitted that her dress almost fell off during one of her shows. "One time in my quick change they forgot to do something," Clarkson said after Twain remarked that something always breaks and "there’s lots of swearing" in the quick change room.