Ohh cute idea Court! My suggestion woudl be to just have it playing in the background while the guests are eating. That way, if people want to watch they can, but it's not mandatory and it doesn't take away from their time to mingle with other people, dance, eat, etc. I don't even know if you would need music then, maybe just have the DJ play some light music in the background? Or, have him play "your song" with Chris, his favorite song, and your favorite song?
Have fun, you are so good with this stuff!