According to the Los Angeles Times, the FCC will start a payola investigation of Clear Channel, CBS, Entercom & Citadel.
Here's the story:
http://www.latimes.com/entertainment/news/la-fi-fcc20apr20,0,2322635.story
Here's the story:
http://www.latimes.com/entertainment/news/la-fi-fcc20apr20,0,2322635.story