For years, New Zealand’s suburbs have been terrorized by the power ballads of Céline Dion and Mariah Carey. Since 2010, self-proclaimed Siren Kings have been strapping sirens ordinarily used for tsunami warnings…

For years, New Zealand’s suburbs have been terrorized by the power ballads of Céline Dion and Mariah Carey. Since 2010, self-proclaimed Siren Kings have been strapping sirens ordinarily used for tsunami warnings…