What was the name and artist of the song played when xander and willow are in formal

[Faith/willowfan]

wear before the prom and they kiss, some of the lyrics are "how does a heart beat, why do we breath...

 

[TheChosenOne]

It is by Lisa Loeb and its called How.

Click the link anf scroll down until you getto the third song. It even has the lyrics 🙂

Hope this helps

http://www.buffy-vs-angel.com/home_music.shtml