Matt — maybe you're right about Pirates not being a parody of a song, but it's a parody of the play. And you can add "Back in the USSR," a parody of "Back In The U.S.A." to the list of parodied songs. Weird Al may have done a parody of MJ's Bad, but so does Stevens — ends it with a barnyard chorus featuring the bleating of sheep on the 'B-a-a-a-d" bit. He also parodied a Beach Boys tune, then name of which escapes me at the moment, and one called "The Flies of Texas."

Seems to me I've seen your posts claiming Stevens is a favorite of yours, so maybe you're just not aware of all the songs he's lampooning.

david