Lady Gaga's performance at SXSW have more than a few tongues wagging, especially when she brought out a "vomit artist" to accompany her performance. (Really, though? Vomiting is an art now?) One person who's speaking out against Lady Gaga's "performance" at SXSW is Demi Lovato, who thinks that Gaga and the "vomit artist" glamorizes eating disorders! 

According to Us Weekly, Lovato spoke out against the ARTPOP singer being vomited on by Millie Brown, who threw up on Gaga during her SXSW performance. "Would you let someone bring a needle and shoot up on you?" she asked. "Addiction is addiction."

This issue is a personal one for Lovato, who entered rehab in 2010 for "physical and emotional issues," and now, Lovato has admitted that one of the issues was an eating disorder, which -- according to E! News -- she's suffered "a s--t-ton" from. "People emulate what they see celebrities do or let happen. And that's why I had to say something .. to let the people who don't understand the art in it, that bulimia isn't cool, and it won't get you on stage with your favorite artist."

Gaga, for her part, defended her decision to have a "vomit artist" onstage with her. "I've known Millie [Brown] for I think like five years now and we've actually collaborated before ... she was just in town and so we thought we would collaborate again," she said. "It was just exciting to see people talk about performance art on the internet. We really just did it because we believe in the performance and we believe in what it meant to the song."  

But Lovato thinks there's nothing artistic about exploiting another person's pain for profit. "Young people who are struggling to figure out their identities are seriously influenced by the things they see their idols do. Whether we intend to or not, artists influence people of ALL ages and unfortunately what people see, people do. Hair, clothes and sometimes misinterpreting things, therefore using the excuse of art to engage in self-destructive behaviors."