Billboard is a world-famous American music magazine that has been published since November 1st 1894 and is headquartered in New York City. It is owned by Prometheus Global Media, a subsidiary company of Guggenheim Partners, which was formed in December 2009 and owns several major entertainment industry trade publications in addition to Billboard like Backstage, Adweek, Film Journal International and The Hollywood Reporter that have different target audiences ranging from 16-26 year olds for Billboard to 30-50 year olds for Adweek.