djsunkid says... Very unlikely. I don't really know the katy perry song, but Wikipedia says that it came out on May 6, 2008. The electrypnose track playing at ~50:00 is called Make Or Quake, and it was released on a compilation on May 10th, according to discogs. Interestingly enough, my friend Chris did a psytrance remix. You can hear it on his twisted sessions page: http://twistedsessions.com/artists/296/audio.php In reply to this comment by EDD: Am I losing my mind or is it really Katy Perry's I Kissed a Girl I'm hearing sampled @ ~50:00 on your Feb 2009 demo??