The event features musicians, including Grateful Dead's Bob Weir, Booker T. Jones, Mavis Staples, the Roots, Passion Pit, Patrick Stump (of Fall Out Boy) and Q-Tip., who are calling on Congress to pass clean energy legislature in 2010.
The event will also include James Cameron, Jesse Jackson, Olympic Gold medalist Billy Demong, and author Margaret Atwood.
This year the event is set for Sunday, April 25th, and is free to the public.
As a personal plug, I'm excited to see Passion Pit, one my favorite bands of the past year. Below, see them perform "Little Secrets" live on Jimmy Kimmel.