The most rock ‘n’ roll thing about “Rocktopia,” a misbegotten new concert mashup of classical music and rock standards that opened Tuesday at the Broadway Theatre, comes in the second act, when one of the chorus members perched on a riser on stage right whips out his orange cellphone and starts recording as Chloe Lowery belts out “I Want to Know What Love Is.”
The chorus singers are all members of the New York Contemporary Choir dressed as if they’re going to hit the clubs after the show, and definitely not the same clubs. They’re also the most enthusiastic people on the stage, grooving to the beat and pumping their fists throughout a two and a half hour production.