"With two dogs in the yard..."

"... life used to be so hard... now everything is easy 'cause of you..."

It's "Our House," the Helen Reddy version.

ADDED: I can't assume you know the lyrics to the songs I know, can I? The point of this post is that Helen Reddy changed the cats to dogs. I can't even begin to hope that you share my sense of humor about that unless you realize that happened.