Music mogul Simon Cowell has approached Victoria Beckham for judging American X Factor, offering $1 million-a-show. Victoria made her debut as a guest judge on rival US show American Idol on Tuesday night, and Cowell, 50, who is leaving his slot as a judge on Idol, is keen to build her popularity with American viewers, reported mirror.co.uk.

"Simon was trying to get hold of Victoria for a few days, keen to suggest a few X Factor dates. When they did finally speak, she was incredibly flattered, not to mention surprised," said a source.