There will be three... why three? Because, knowing us, we'll decide to each pick one and also pick one together.
First dance... "As" by George Michael and Mary J Blige... because of the lyrics and because it was the song he was listening to when he first saw me.
Slow dance - "Unmistakable" by BSB, because its about finding your soul mate... and it was the song I was listening to when I first saw him.
Fast dance (actually a Salsa) - "Body to Body, Heart to Heart" by Cher... again, just because of the lyrics.
Of course, knowing us... we could end up dancing to the first one and then duck out quietly to start the "honeymoon" early...