Ariana lives with a "psycho"!

Uh oh... Ariana Grande has something crazy living in her house! Don't worry, it's not as bad as it sounds. The Sam and Cat star recently tweeted, "My dog is a psychopath." That psychopath is her Dachshund and German Shepherd mix, Coco! Ariana loves her cute dog so much, but says she can sometimes be crazy!