I learned about Deadmau5 years ago from one of Clovis' very old mixes, circa 2006. He started the set with Faxing Berlin. My thoughts were immediately "this is a cool track, and I really dig the weird, radio/low-fi vocals through it. I'm going to buy this".
Pissed was I, when I bought the track, and there were no weird radio/low-fi vocals at all!
Clovis had thrown a nice [weird, radio/low-fi] a cappella over the track while mixing it. And it totally MADE the song.
I never bought another Deadmau5 track again