[jbrownsjr]

Originally Posted by HejiraNYC

I don't think it's a grammatical mistake as much as it was "artistic license." From what I can recall, the phrase "sky's the limit" or "skies the limit" is never actually stated anywhere in the song. The subject and the noun are always clearly enunciated- "The sky is the limit now." As such, I think the song title is supposed to be more descriptive than an actual outtake of the lyric. Perhaps a dash would help to make it clearer, e.g., "Skies - The Limit," in the same vein as "Star Trek - The Next Generation."

could the title have been sort of a "pun"?