Happy

I follow Sippican Cottage who recently posted on "the happiest songs," with a sampling. The first thing that came to my mind was Apollo 100's Jesu Joy of Man's Desiring, and not just because of the title. I thought it a happy song (OK, instrumental) long before I knew the name. (True. Not sure why, maybe no DJ's to explain.) I've wondered if one could time a fireworks display to it...

Anyhow, what are your suggestions?