In John Mayer’s opinion, what is the most important element for a successful outdoor concert like Saadiyat Nights?

John Mayer has spent decades performing on the world’s most famous stages. He has played in tiny clubs and massive stadiums. He has performed indoors and outdoors across every continent. However, certain events like Saadiyat Nights (Abu Dhabi) stand apart from the rest. For John Mayer, a successful outdoor concert depends on one core element. […]