ZM (pronounced zed-em) is a New Zealand contemporary hit radio network owned by New Zealand Media and Entertainment. It broadcasts 19 markets throughout mainland New Zealand via terrestrial FM, and worldwide via the Internet. The network targets the 15–39 demographic specialises in a chart-music playlist of pop, rock, hip hop and dance music. It reaches approximately 324,000 listeners weekly, making it the fourth largest commercial radio station in New Zealand. The network's head office and main studios are based in Auckland, where all of the programming is produced.