Calle 13: Accidental Revolutionaries Published January 2, 2015 at 3:36 PM MST Facebook Email Print Listen • 11:28 Since starting as a jokey band from Puerto Rico, Calle Trece has become one of the most important groups in Latin America. Frontman Rene Perez Joglar discusses the group's new album, Multi_Viral. Copyright 2015 NPR