Rolando Villazón suprises his fans in a flashmob (2014)

Opera star Rolando Villazón, the world famous Mexican tenor, received a mission from the ARTE redaction: He has to go undercover to the choir rehearsal from the Berlin Kantorei and surprise them. He will organize a flash mob together with the choir members at one of the largest shopping center of the world - the KaDeWe - and perform Haendel's Hallelujah. How will the customers react? …