VIDEO : Did Demi Lovato Just Diss Mariah Carey? Singer Defends J-Lo

It's a battle of the Lovatics vs. the Lambs!
Demi Lovato reportedly slammed Mariah Carey in a series of comments (that have since been deleted) on a celebrity gossip account, The Art of Shade, late Thursday, coming to the defense of Jennifer Lopez.
The post compared Ariana Grande to Mariah, claiming the former Nickelodeon star is a lesser version of the 46-year-old singer. Demi commented, saying, "You got it the wrong way around honey," before bringing up Mariah and J.