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Sting and Lady Gaga perform at the Rainforest Fund's 21st Birthday Concert at Carnegie Hall in New York City on May 13, 2010. UPI/John Angelillo Stock Photo - Alamy
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Photo: Sting and Lady Gaga perform at the Rainforest Fund's 21st Birthday Concert at Carnegie Hall in New York - NYP20100513113 - UPI.com
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