Freely Fest Logo (Freely Fest) Bridgestone Arena will host the inaugural Freely Fest, a musical event designed to help bridge a widening gap in constitutional comprehension among music fans.    The Killers, T-Pain, and Dominic Fike will headline the sold-out festival Wednesday night. The organizers say the music is a "universal language" used to spark a much-needed dialogue about the First Amendment.   Put on by the nonpartisan nonprofit Freedom Forum, the festival comes at a time when free...