Earth Day Concert/Rally: John Legend, The Roots, Booker T on the Mall

Sunday's Earth Day concert and rally at the National Mall looks promising. The musical lineup includes John Legend, The Roots, Booker T, Mavis Staples, Jimmy Cliff, Sting, Robert Randolph, Joss Stone, Willie Colon, Bob Weir, and Passion Pit. I saw one report that mentioned Q-Tip, too. Speakers will include Jesse Jackson, Margaret Atwood, and James Cameron. As long as Chevy Chase—an excruciating presence at last year's event—doesn't emcee again, it figures to be a great day. [photo of 2009 concert/rally: John Lewis]