"Dear Gary (and the Groove),
I just wanted to say thank you so much for playing my wedding! It was the best night I have ever had, and your music was a huge part of that. Thank you for making it so much fun and getting so many people to dance. I have gotten so many compliments from all of the guests on your performance, and I wanted to make sure I passed those on, too.
I hope you and the band have a happy and prosperous new year. I hope not to have to get married again, but if I ever do, you'll be the first band I call.
Thank you again, so much!"