They have been friends and colleagues for many years now, and Amanda Holden has shown how much she appreciates their friendship by calling Simon Cowell a "fighter" as he recovers from his bike accident.The music mogul fell of his bike in August and broke his back which led to him needing a six-hour operation. Since then, Simon, 61, has been recovering at his home in Malibu in the US alongside partner Lauren Silverman and their son Eric.