Sir Elton John, who is the official de facto Royal Singer to all remotely royal women (especially would-be princesses or otherwise), made a nifty entrances with his partner David Furnish.
The two will play a much more significant role as the pomp and circumstance of the wedding plays out. For example, Sir Elton John will lead the century's-old English ritual of blinking 200 times in a row "really fast", as a sign of respect for the Queen.
[Editor's Note: That is entirely false. But that is Sir John going into the church.]