Amy Winehouse has missed out on the biggest night of her life, and it's all because of that darn 'Amy Winehouse getting hammered on crack' video.

Amy was supposed to be performing at the Grammys this weekend, but her request for an American visa has been denied, possibly because she'd explode the faces off every sniffer dog in a 50-mile radius the instant she landed at LAX.

Still, ever the trouper Amy Winehouse has vowed to do her Grammys performance live by satellite - just as soon as she's worked out whether her husband's prison or the confines of her drug rehab centre will make the more attractive backdrop.