A demo version for Lady Gaga and Azealia Banks' collaboration "Red Flame" has leaked online. The track was originally recorded for Gaga's 2013 album ARTPOP, but did not make the final cut. Although there was no official word on why the collaboration was left unreleased, Gaga told fans that the controversial rapper, known for her inflammatory statements and Twitter feuds, had "a bad attitude."

Listen below and let us know what you think in the comments!