ost people know Don Henley as the multiple Grammy- winning founding member of the Eagles or as a successful solo artist. His peers know him as an artist's champion, the man who co-founded the Recording Artists' Coalition, a nonprofit, nonpartisan group that takes action against faulty accounting practices and unfair label contracts and advocates for legislative issues on behalf of recording artists. But his efforts as an environmentalist may be closest to his heart: He founded the nonprofit Walden Woods Project, which helps preserve the historic 2,680-acre ecological area surrounding Henry David Thoreau's Walden Pond in Massachusetts, and the Caddo Lake Institute in Henley's native East Texas, which sponsors "ecosystem-specific" projects. Henley will be honored at the 2007 MusiCares Person of the Year dinner and concert tonight in Los Angeles for his professional and philanthropic achievements. All proceeds from the annual Grammy Week event benefit MusiCares, a nonprofit group offering aid to music people in times of financial, medical and personal need. Henley recently spoke with Billboard executive editor/associate publisher Tamara Conniff about the MusiCares honor, his environmental efforts and the upcoming Eagles album.