Demi Lovato totally shut down her HATERS on Instagram last night

As we all know, Demi Lovato and long-time BFF Nick Jonas are preparing to go on tour together, and while we can't wait to see them perform their kinda-sorta Camp Rock reunion, it seems that not every Lovato fan is happy about it.

One fan took to Instagram last night to share their views with the singer, and Demi… Well, Demi completely shut them down.

We think this fan didn't remember that Nick and Demi are besties, and you can criticise someone's career, but never go near their best friend.