Banks stunned fans when she posted the video on Snapchat, reported Contactmusic.
Armed with a sandblaster, facemask and cleaning supplies, she said, "The amount of ... That is about to come off my floor right now guys, oh my God. Three years worth of brujeria. Yes, you know I got to scrape all this up. I got my sandblaster and my goggles. It's about to go down."
She added, "Real witches do real things. In case you didn't know, brujeria is the Spanish word for witchcraft."
The "Chandelier" singer, who is a staunch vegan and longtime activist for animal rights tweeted: "Sacrificing animals for your gain is the wackest thing I've ever heard. Get ahead by being awesome, kind and working hard.
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