MONTREUX, Switzerland (Reuters) – Lana Del Rey gave a Fourth of July concert at the Montreux Jazz Festival that left fans wanting more of the American chanteuse, who swept to fame last year on the back of her haunting 'Video Games' single. The New York native, looking like a vintage-inspired bride in a white lace mini dress and with large white flowers in her hair, performed just nine songs in a tight 45-minute show that fittingly finished with her "National Anthem" track. …