Simon Cowell suffered a serious back injury on Sunday when he fell off an electric bike. According to CNN, the judge for "America's Got Talent" broke his back in several places. Cowell had to undergo surgery as a result of his injuries. A spokeswoman for Cowell said the former "American Idol" judge fell off the bike in the courtyard of his home. Cowell tweeted on Sunday "If you buy an electric trail bike, read the manual before you ride it for the first time".