PHOTO:Mariah’s fans comes for Demi Lovato after she throws some major shade at "nasty" Mariah Carey

According to report, Demi Lovato has managed to rile up Mariah Carey’s loyal fanbase. It all started when the 23-year-old singer commented on an Instagram meme which compared Mariah to A riana Grande. “When you order it online vs when it arrives,” it read above a picture of the music legend and the former Nickelodeon star. "You got it the wrong way around honey," Demi wrote. Clarifying what she meant a little while later, she revealed she didn’t like the way Mariah treated Jennifer Lopez who she regularly throws shade at ( “Who is she?” ). She wrote: “Mariah is a legend and is so talented but constantly disses people. It’s nasty the way she treats Jennifer. Ari did nothing wrong.” Within minutes Mariah's ‘lambs’ began spamming Demi's Instagram feed with criticism and countless emojis. Just last month, Mariah tried to clarify her infamous comments about J-Lo, insisting her remarks were simply misunderstood. Speaking on Watch What H...