Oompa loompa doompety doo

I've got another puzzle for you

Oompa loompa doompety dee

If you are wise you'll listen to me

What do you get when you simply assume?

You only arrange just a silly old doom

You would do well to mark our very tune

For you if you just constantly assume

You make an ass of me and you

Oompa loompa doompety da

Look for some proof and you will go far

You will live in happiness too

Like the Oompa Loompa Doompety do