Bush - Glycerine
The song Glycerine, of the post-grunge band Bush, is probably the song that has had the most impact on my life. I was 17 years old when I discovered this song. I had just moved out of my parents' place to go to college and started dating the woman that would later become my wife.
Around that time, in 1996, the song was performed live, solo, by Gavin Rossdale, during a heavy storm at the MTV Spring Break festival. Thanks to the wonders of YouTube, we can go back in time and replay sentimental memories of our youth. (The YouTube video of the MTV Spring Break performance is embedded below.)
Even today, 12 years later, this might still be my all-time favorite song. I just listened to it ... twice. Nostalgic!