Lo and behold! The first song off of his solo debut, "When," is titled "I Wrote This Song For The Girl Paris Hilton."
This is, of course, in 2001, when she was "just" a heiress and model. Of course, Gallo's a model himself, so it's quite likely they knew each other. Very strange.
Also strange, he was in Jean-Michel Basquiat's band.