Billboard Magazine voted these 10 artists the greenest of them all in 2008 for their actions in reducing their carbon footprints and contributions to raising green awareness.  Do you know these Green Artists? Do you want to support them or preview their music? Click the artist name to visit on iTunes:

1. Jack Johnson
2. Willie Nelson
3. Maná
4. Dave Matthews Band
5. KT Tunstall
6. Pearl Jam
7. Serj Tankian
8. Radiohead
9. Missy Higgins
10. The Roots

Visit Billboard for information on why these artists were selected for the list.