At Encarta, Martha Brockenbrough takes pop/rock lyricists to task for their crimes against the language.
Unfortunately, although she has a point, grammarians tend to go a little easier on historical lyricists who butchered the language to make a rhyme or to get off on the right foot. There’s no word on whether old poets necessarily knew the rules they were breaking, either.
What was my point? Oh, cool grammar post. Go read it, Mz. Igert.