Yeah it's all true, a friend of mine works as an assistant down at the radio station where she talks calls from requests and answers questions. She said when people ask for requests on the radio, if the song isn't coming up in the line up of songs they were PAID TO PLAY, they won't play it.
What else do you get when you work in Southern California
........... everything's corrupt man
Except satellite radios of course, you can request whatever and they'll play it just fine.