This year saw the Europe-wide Flashmob Singalong of the Fête de la Musique in Berlin jump hugely in numbers, with thousands of people turning up at the steps of the Konzerthaus on Gendarmenmarkt to sing along simultaneously with people in cities across Europe. But first, an Aola wave!
La Ola Wave Flashmob Singalong Fete de la Musique 2019
