Less than 24 hours later that spirited rumor had been transmogrified into flesh-and-blood reality as a the beige-clad Sunday Service choir of roughly 100 clustered around a piano at the Théâtre des Bouffes du Nord before an audience that numbered barely twice that and launched into a rousing hour-and-20-minute exercise in musical ministry that had the fashion-week faithful on their feet, singing and throwing the occasional Alleluia hands in the air.