Why is the Beetlejuice song so damn catchy??

I can't believe how catchy The Beetlejuice Song that Howard has been playing is.
It's not like the backing track is anything special and the lyrics sure are out there, but for some reason it has been stuck in my head all week. I swear I start humming it within 10 minutes of getting up in the morn'.

Here are the lyrics the best I can tell:

This is Beetle
he's as bad as can
he knows he's the best
this is Beetle he's as bad as can
he knows he's the best
he's big and he's strong
and he knows that he's badder
and he knows what he gets
he knows what he knows
and he knows what he have
and he knows what he digs
he gets better
and he's a tough guy
and he knows
he knows the best
.................................................

Who me???