Well, Blackjack told me that this didn't needed to besticky so I'm just going to post it.
Basicaly you choose a song that represents your fanfiction, and your characters. Like this
Pokemon New Generation a New Beggining
Theme song: Our time now- plain white t's
Ashian's song: What I've done-Linking Park
Evelyn's song: She will be love- Maroon 5
Henry's song: Have a nice day- Bon Jovi