On a hot May afternoon in Miami, Major Lazer is gathered at a dockside seafood spot called Garcia’s for a lunch of conch fritters, grilled mahi-mahi, rice and plantains. The vibe is very Jimmy Buffett, with a deeply tanned middle-aged posse pulling up in a speedboat and hopping out for a meal, and an actual pod of dolphins cruising by, much to our table’s delight. Diplo, whose real name is Wesley Pentz (everyone calls him Wes), is especially pleased by a mural with a cartooni