If the Bercy-concert was postponed the first or second time then it was because problems started between Werrason and his manager/producer Claude Maluma. Werra sended Adolphe several times to convice Claude to not postpone the event, but he refused. So Werra's staff decided to contact a jewish businessman called monsieur Yann, who worked severals times with Congolese musicians to help them out. Something which worked out perfectly with disbelief from the BCBG-camp. Because they saw Maison Mere performing previously at Bercy then them as a humilation, since they came from a successful Olympia & Zenith. I still don't understand why they opted for a revenge fara-fara at LSC, instead to wait 3 or 2 months to "correct" them at Bercy.