“There were no explanations or niceties — and Carrie’s people just turned Kelly down flat!” spilled an insider. “Kelly was furious!”
Both Kelly, 37, and Carrie, 36, have been supportive of each other in public. But sources told The National ENQUIRER the superstars are locked in a fierce behind-the-scenes rivalry!
“The feud has only gotten worse, with both stars privately trashing each other to friends!”
Neither Kelly Clarkson nor Carrie Underwood responded to our requests for comment.