From GTPlanet Game Guides

Want to know what song that was that you just heard in GT3? Take a look at this list, and you'll probably find it.

1. 8 Stops 7 - Satisfied
2. Apollo Four Forty - Stop the Rock
3. BT - Mad Skillz
4. CiRRUS - Break In
5. The Cult - She Sells Sanctuary
6. Dave Aude - Go Gran Turismo
7. Elite Force - Call It Brisco (And Why Not?)
8. Goldfinger - 99 Red Balloons
9. Grand Theft Audio - As Good As It Gets
10. Grinspoon - Champion
11. Jimi Hendrix - Stone Free
12. Judas Priest - Turbo Lover
13. Junkie XL - Def Beat
14. Lenny Kravitz - Are You Gonna Go My Way
15. Methods of Mayhem - Crash
16. Motley Crue - Kickstart My Heart
17. Papa Roach - Never Enough
18. Powerman 5000 - Supernova Goes Pop
19. Raekwon - Determination
20. Snoop Dogg - Dogg's Turismo III