https://www.upi.com/News_Photos/lp/202cab2fbc5b464f5236d105b6612759/https://www.upi.com/News_Photos/view/upi/202cab2fbc5b464f5236d105b6612759/Earth-Day-celebration-on-the-National-Mall-in-Washington/NEWS, NATIONAL MALL, EARTH DAYUPIUPIhttps://cdnph.upi.com/pv/upi/202cab2fbc5b464f5236d105b6612759/Earth-Day-on-the-Mall-2009.jpg
Earth Day celebration on the National Mall in Washington
Wayne Coyne, of the Flaming Lips, performs during the Earth Day on the Mall concert on the National Mall in Washington on April 19, 2009. (UPI Photo/Kevin Dietsch)