WASHINGTON: Humpback whales love a good hit single, and every year a new catchy pop tune spreads among the male underwater crooners, said an Australian study released Thursday. If there is a whale version of the King of Pop, he likely resides off the coast of eastern Australia, because that is where the popular tune of the season has always originated for the past decade, researchers said. The hit-making tune then ripples eastward across the South Pacific Ocean, from Australia to French Polynesia, infecting genetically distinct groups of whales who all start singing the same song during breeding season.