if i die young

This song is not that new. It's been played on air for a few weeks now. But, last night Mr Boyfriend updated his Facebook status, asking why Van Gogh's paintings worth more now that he's dead than they did when he was still alive. I commented in it, mentioning some lines from this song (A penny for my thoughts. Oh, no! I'd sell them for a dollar. They worth so much more after I'm a goner.) Aaaaand... we ended up discussing about the meaning of the lyrics. Haha!

The lyrics are so sad, but the music is not. And neither is the music video. Honestly, I can't really understand the storyline of the music video. Can you?