“It’s clear this theater isn’t used to rock concerts,” Nick Jonas roared from the stage. “The spotlights can’t hit us because you’re all standing.” He was right: Broadway’s Marquis Theater, which has housed acclaimed but not quite foot-stomping, hip-shaking productions of musicals like “Tootsie” and “Beetlejuice,” isn’t accustomed to two hours of 1,600 jumping, screaming fans. Yet […]