I knew they controlled a lot, but 70% of all live events...holy mother. It's a long article, so I'm only posting the top couple of paragraphs, but it's really interesting...
Inside Clear Channel Rolling Stone magazine online How the company's domination has made the airwaves blander and tickets pricier
Scan the radio dial in Detroit, and you'll likely land on a station that's owned by Clear Channel Communications. Seven of the city's most popular stations belong to the company, including WJLB 97.9 (an R&B station that once pushed Parliament-Funkadelic to national prominence), a Top Forty station, a classic-rock station and two adult-contemporary options. Clear Channel also owns two AM talk stations in Detroit, which broadcast Pistons games and conservative talk-show host Glenn Beck, who MC'd the "Rallies for America" that drummed up support for attacking Iraq.
Clear Channel also has a near lock on Detroit's concert business. The company owns two massive amphitheaters, a pair of 1,000- to 1,400-person clubs and a 2,800-seat theater, and it books the Palace of Auburn Hills, a 15,000-seat arena. During the week of July 26th, the company controlled Motor City concerts by the Dead, Hilary Duff, Midtown, Hanson, Huey Lewis and the News, Prince and D12.
It's not just Detroit, either. Clear Channel controls roughly 1,200 radio stations and about seventy percent of all live events that are promoted in the United States. The company also is reportedly considering the launch or purchase of a record label.