Simon Cowell singing attempt ends in severe blushing.

Shy Cowell blushes before the cameras.

An attempt by Simon Cowell to move from critiquing other performers' singing abilities on shows like American Idol to singing himself ended in farce Wednesday after the embarrassed singer succumbed to a bout of crippling stage-fright. Cowell choked up and began to blush really, really badly. His singing attempt was by all accounts a complete disaster..."I'm so sorry," he said afterwards "I just got really, really shy. I'm not usually like that."