The hobbit? i need a song about one of it characters?

for honors english i had to read the hobbit. as an asignment, we have to find a song that shows the characteristics of one of the characters. (gandalf the wizard, gollum, smaug, bard, or of course bilbo, etc, etc,) so it can be any character and i need a song that talks about them. not them exactly, but seems like them. THANKS!!!!