A request to get to Michael on stage

Hi

I have never in my life ever asked this, but I am going to watch Michael in concert sunday and would be over the moon if i could get a request to him.

Bascially its my wedding anniversary, and I am going with my husband, so it would make mine and his night if he would sing a song i request.

Can anyone help as to the best way to go about this.

Many Thanks

adele