United Kingdom, Aug. 9 -- Kelly Clarkson opened up to fans in Las Vegas about one of the most chaotic break-ups of her life, revealing she once had to end a relationship twice because the other person simply refused to accept it.

Speaking during her Studio Sessions residency at Caesars Palace on Saturday (08.08.26), Kelly introduced her song I'd Be Lyin' by explaining the real-life drama behind it. Not naming names, she said she had already broken up with someone when they suddenly acted as if it had never happened.

She said: "I swear to God, I've had to break up with someone twice. That's a real story. That's true."

The Behind These Hazel Eyes singer - who is currently single - told the crowd the second break-up felt just as awful as ...