Maybe it would help if I posted the lyrics:

No Hairballs in Heaven

(Words by Charlie Ipcar © 1982 Traditional Tune: Lightning Express)

Chorus:

There'll be no hairballs in Heaven,
No weariness sorrow or pain,
No claws that are bleeding and broken,
No nights left out in the rain.

We'll be in that beautiful jungle,
With birdies to chase through the leaves,
And mice will be there in abundance,
We'll snatch them whenever we please;
There'll be no Pit Bulls in Heaven,
No German Shepherds nor Chows,
And all will be tuna and salmon,
And cream drawn fresh from the cow.(CHO)