I have about 36 hours to buy something suitable to wear to a rock concert (indoor). I'm 45, dark haired, 5 ft 4, and a size 12 to 14- carry weight on my hips and stomach. I would like something bling which I can get in a physical store like Zara, John Lewis, Oliver Bonas etc., stock permitting, since too late to order. Ideally dress or jumpsuit. I'm in London. Would appreciate suggestions please.