TO HELL WITH THE LIVE VOCALS Stryper lip-syncing? Video clip exposes their pre-recorded vocals in live show     Frontiers Music Festival, ITALY — It’s always awesome when a band is talented and can recreate their studio work. It’s even more impressive when they can do it 30+ years into their career. Such is the case with Stryper. Or is it? A recent upload on youtube from the band’s appeaance at the annual Frontier’s Music Festival shows off all[…]