Fifth Harmony Rocks MTV’s EMA Kickoff in Miami

By Brooke Rudisill – Additional Reporting by Aisling McEntegart & Kevin Studer With Fifth Harmony performing a heart stopping, first ever televised performance of their brand new single “Sledgehammer” at the MTV EMA Kickoff in Miami this past Sunday, the up and coming group had “Harmonizers” all over the nation craving for more. Their debut…