KT Tunstall is not exactly a fan of American Idol.

The singer is furious her hit song - "Black Horse and the Cherry Tree" - was used on "a money-making puppet show."

She added: "There's no control given to the people. They are nationally humiliated for being themselves. Horrible."

Ouch. Tell us how you really feel, KT.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.