rooftop mall parkade coined by Nelly Furtado?

[Torsten]

It seems that the term 'rooftop mall parkade' is all too popular (based on Google). Was this phrase by coined or Nelly Furtado or did it exist before?
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[Mister Micawber]

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What's a rooftop mall parkade? Who's Nelly Furtado?
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[Yankee]

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I'd heard the name Nelly Furtado somewhere before, but had to check Google to find out who she was.

I wouldn't consider 'rooftop mall parkade' to be a commonly used expression. It just seems to be the way she happened to decide to say something in a song. She certainly did not coin the any of the words.
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[Theresa]

Is she the singer who became known with the song "Promiscuous"?

[Molly]

Doesn't appear at all here:

http://www.americancorpus.org/