London: Music mogul Simon Cowell says he would not have hesitated in throwing out Lady Gaga if the pop star had auditioned for 'American Idol'.

Cowell, who has given Kelly Clarkson, Jennifer Hudson, Jordin Sparks and Carrie Underwood their big breaks on Idol, has stunned fans by confessing that he would not have appreciated Gaga if she had showed up in one of her crazy costumes, according to reports.

"She would have been thrown out within 10 seconds. It would have been one of the kooky auditions," he said.

But Cowell admits the 'Judas' hitmaker's success has made him think twice before dismissing talent.

"Now you have to be more open-minded and embrace that level of expression. You hope to God you can find someone like her," he added.