Demi Lovato's former tattoo artist is throwing some shade at the "Heart Attack" singer.

Weeks after the 22-year-old artist decided to cover up the tattoo on her forearm with a huge rose, Ashley McMullen, a woman who claimed to be the singer's "vagina tattoo" artist is calling Lovato out on social media for not paying for the original ink.

"Cool post @ddlovato, thanks for getting the tattoo covered up I did for free that you specifically asked for. Not to mention you didn't even have the courtesy to offer me any money in the first place," McMullen commented under Lovato's picture. "You pissed all over our toilet seat and you made a fool of yourself. What a shame that people look up to you. The tattoo you covered it with kinda sucks too. Looks like you might forever be a goon. Feel free to bombard her since I got no recognition from the tattoo."

McMullen added several harsh hastaghs, "#demilovato #scumbag #turd #claimstobesober #drankallthebeer #peepeetoiletseat #yousuck."

In a second comment McMullen wrote, "It's a really nice example to people your setting saying to not do drugs, but honestly you were acting like a full-time slob...You never even gave me a shout out when I dealt with your drunk ass."

The comments came after Lovato shared a photo of her rose tattoo via Instagram and wrote, "Bye bye and hello.. Thank you SO MUCH to my brother @GEESPOTAT2... It looks beaaaautiful and I LOVE it! #RIPvaginatattoo #kidsdontdodrugs."

Instead of responding with harsh words, Lovato posted a series of emojis, including a picture of lips, a toilet, and jugs of beer.