Poor Kate Gosselin is NEVER going to win the mother of the year award.
Especially if she doesn't stop screaming at her kids in public.
Radar Online is reporting a fellow concert-goer in Fairfax, Virginia, got all the dirt on Kate's latest eye-opening behavior regarding Cara and Mady:
"We were at the Demi Lovato concert on Sunday night and had just entered the building and were browsing the merchandise table," says the insider.
"I turned and saw a girl who looked familiar but turned away and didn’t think much of it. Next thing you know we heard someone yelling, ‘You both need to come back here now!"
"'Get over here and stay together! Where are you guys going?!' I turned around and lo and behold, it was Kate Gosselin b--ching out the twins."