Does anyone know why some songs don't get cleared. For example, Mobb Deep was talking so much about a Dre produced track called Nightmares for Blood Money (the album was no good but that doesnt matter). They hyped it up in almost every interview, but when the album dropped, they said it didnt get cleared. Another example, is Busta's Big Bang album (although its been leaked, I'm gonna wait til tomorow to get it) he was talking about a track called Imagine, a song which dre produced and layed down a verse on. This song also did not get cleared. Does anyone know how come songs don't get cleared, or what the reason is for them not being cleared?