It's official - Michael Jackson is dead at the age of 50. Jackson was rushed into an undisclosed hospital in Los Angeles, California in full cardiac arrest and was pronounced dead at 1446 PST8PDT. The cause of death isn't known, and won't be determined for a couple of weeks at least. The rumors from earlier today have been officially dispelled, and Netcraft confirms it. Jackson was easily one of the most prolific musicians in history, topping out in the neighborhood of 750 million records sold during his career. Oddly enough, he just closed a series of 50 concerts in London, England which would have run until March of 2010. Tickets for those concerts sold out in minutes.