The X Factor judge, Simon Cowell, has taken to his social media accounts to update fans following an incident which resulted in the 60-year-old breaking his back in three places and requiring surgery.The dad-of-one was rushed to hospital on Saturday after falling off his electric bike whilst testing it out in his Malibu home, and after undergoing a six-hour surgery, Simon has now updated his fan base.Posting on his Twitter account, Simon joked, "Some good advice...