Singer Joss Stone (right) joins The Roots during the Earth Day Climate Rally on the National Mall.
Bill O'leary-Washington Post
Fans cheer as the band The Roots takes the stage. Sting and Mavis Staples also performed at the Earth Day Climate Rally.
Bill O'leary-Washington Post
R&B star John Legend performs at Sunday's Earth Day Climate Rally. During the concert, he performed the song "Many Rivers to Cross" with reggae singer Jimmy Cliff.
Bill O'leary-Washington Post
Sting strums his guitar during Sunday's Earth Day Climate Rally on the National Mall.
Bill O'leary-Washington Post
Damon "Tuba Gooding Jr." Bryson, an occasionally touring sousaphonist with The Roots, pumps up the crowd during a performance Sunday.
Nick Kirkpatrick-The Washington Post
The 40th anniversary of Earth Day wraps up with a concert and rally on the National Mall in Washington.
Bill O'leary-Washington Post
Tariq Trotter, lead singer of The Roots, performs during Sunday's Earth Day Climate Rally on the National Mall.
Bill O'leary-Washington Post
Auset Sherrill, center, of Washington, screams during a performance of The Roots. She was among tens of thousands who came to the National Mall to celebrate the 40th anniversary of Earth Day.
Bill O'leary-Washington Post
The Roots jam and break a sweat during Sunday's Earth Day Climate Rally on the National Mall.
Mark Abramson-Washington Post
Geneva Boyer, left, dressed as a polar bear, protects the Earth from Susan Shamel, right, who portrays coal. Roger Shamel, center, holds a sign as the trio celebrate at the Earth Day Climate Rally on the National Mall.
Bill O'leary-Washington Post
The band Passion Pit performs at the Earth Day Climate Rally on the National Mall.
Nick Kirkpatrick-The Washington Post
A couple made up as characters from the hit movie "Avatar," celebrate Earth Day on the National Mall.
Bill O'Leary-Washington Post
Trombonist Willie Colon performs at the Earth Day Climate Rally in Washington.
Bill O'Leary-Washington Post
A young attendee gets a lift above the fray while waiting for the next musical act to start at the Earth Day Climate Rally in Washington.
Bill O'Leary-Washington Post
Reggae musician Jimmy Cliff belts out a tune at the Earth Day Climate Rally.
Bill O'Leary-Washington Post
Fans react to reggae superstar Jimmy Cliff's performance at the earth Day Climate Rally on the National Mall.
Bill O'Leary-Washington Post
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