These are the theme songs I think match the following characters BTW.
- Naruto: GO - FLOW
Sasuke: Numb - Linkin Park
Sakura: My Sweet Passion - Nikki Gregoroff
Rock Lee: C.R.E.A.M. - Wu Tang
Kakashi: D-tecnolife - UVERworld
Itachi: Immortal - Adema
Chouji: I'm Fat - Wierd Al Yankovic
Jiraiya: Baby Got Back - Sir Mix-A-Lot
Orochimaru: Cold Hearted Snake - Paula Abdul
Shino: White And Nerdy (since he sounds like a geek in the dub) - Wierd Al Yankovic
Hinata: Follow Me - Kay Hanley
Gaara: Mr. Sandman -
I don't know who sang that song 
