Demi Lovato Calls Out Mariah Carey for 'Constantly Dissing People'

Demi Lovato is totally throwing shade at Mariah Carey for being a mean girl!

The 23-year-old performer left a comment on an Instagram meme that implied that Ariana Grande was not as talented as Mariah.

PHOTOS: Check out the latest pics of Demi Lovato

“You got it the wrong way around honey,” Demi wrote, showing support for Ariana.

Demi later commented again, saying, “Mariah is a legend and is so talented but constantly disses people. It’s nasty the way she treats Jennifer [Lopez]. Ari did nothing wrong.”

Mariah and Jennifer have been have been feuding since the early 2000s, which started when Mariah was asked about the fellow popstar and coldly replied, “I don’t know her.”

Check out the meme Demi commented on below…