"Kill Your Parents" by The Smashing Pumpkins is not actually a real song, but banter that regularly preceded "Siva" during live shows in the early 90s. Usually the band would preface "Siva" by saying it's a "song about killing your parents and taking drugs", though sometimes they would explicitly say the song is called "Kill Your Parents". Typically the banter lasted between a minute and two minutes.
It is listed as its own track on the Mashed Potatoes bootleg.
Videos
From Mashed Potatoes