Clear Channel owns over 1,200 radio stations and 37 television stations, with investments in 240 radio stations globally, and Clear Channel Entertainment (also known as SFX), one of their more well-known subsidiaries) owns and operates over 200 venues nationwide. They are in 248 of the top 250 radio markets, controlling 60% of all rock programming. They outright own the tours of musicians like Janet Jackson, Aerosmith, Pearl Jam, Madonna and N'Sync. They own the network which airs Rush Limbaugh, Dr. Laura, Casey Kasem, and the Fox Sports Radio Network. With 103,000,000 listeners in the U.S. and 1,000,000,000 globally (1/6 of the world population), this powerful company has grown unchecked, using their monopoly to control the entire music industry.