A rough demo for the track was posted on SoundCloud by MonsterVlad on Sunday, August 14 and has since spread on the internet.
The never-before-heard track was originally recorded for Gaga's 2013 album "ARTPOP" but it didn't make the final cut, reported Aceshowbiz.
The demo features Banks' fiery raps and Gaga intoning about wearing patent leather and smoking Mary Jane.
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