iHeartRadio is an American free broadcast, podcast and streaming radio platform owned by iHeartMedia. It was founded in April 2008. As of 2019, iHeartRadio functions as the national umbrella brand for iHeartMedia's radio network, the largest radio broadcaster in the United States. Its main competitors are Audacy and TuneIn. They regularly host performances at the iHeartRadio Theaters in Los Angeles and New York. .