No doubt most of the cameras will be pointed on the couple itself but here's a list of other celebrities that are expected to show up to witness the marriage between Prince William and Kate Middleton!The palace has just revealed the "secret list" of attendees and it's no surprise beloved Brits Victoria and David Beckham, as well as Elton John are on it! More surprising perhaps are singer Joss Stone, Olympic swimmer Ian Thorpe, director Guy Ritchie and the always funny Rowan Atkinson!Besides the above mentioned celebrity royalty there will, of course, be a whole bunch of real royals attending, including representatives from the Belgian, Swedish, Norwegian, Danish and Saudi royal families! We can't wait for the red carpet (or whatever they call it at a royal wedding)! (Source: Popeater)