WASHINGTON, April 17, 2015 /PRNewswire-USNewswire/ -- Rovio Entertainment, in cooperation with the Earth Day Network, will announce Angry Birds' "Champions for Earth" – an awareness driving in-game experience – at Global Citizen 2015 Earth Day, on April 18th, at the National...
Source : http://www.prnewswire.com/news-releases/angry-bird...