i think that it's a good thing that those early listeners didn't really know that it was Gaga in Partynauseous. Those urban listeners won't already judge her part in the song because we all know they'd say they don't like her part if Gaga was really prominent in it. If they like the song without really knowing know Gaga was in it, she'll get the urban appeal that she would have lost from those people with predisposed opinions about her. So in the long term she'll have a foundation to build her urban appeal upon.