It's a cassette ("scream tape") of the band, I believe, shouting in a silo during their first trip to Europe in June 1983. As for whether it's included, you're lucky
I used to be so cool. Sounds like they start it before or during "Flower" and it just keeps playing through 2 songs?
Not the first known performance of "Secret Girl"
anymore, to correct my own site without actually doing so.