I can't remember the name of this show?

It was quite a few years back and I really wanted to watch this show again but I can't remember the name. It was about a group of monsters that crash landed on earth and lived in a big house. The animation was a bit schizophrenic and the main chorus in the theme song went like.. "We love monsters na na na na.." I know I'm being a big vague but I'm hoping someone can help me out! It may have been on teletoon and was canceled after maybe just a season.