Sing a happy song
And when you sing a happy song remember this:
That anybody who can sing a happy song
Has a happy heart within.

Think a happy thought
And when you think a happy thought remember this:
That anybody who can think a happy thought
Has a happy heart within.

Don't be a silly willy-nilly.
Don't be a horner stuck in a corner.
Just take advice from happy me
And you will see that you will be...

Singing happy songs
And thinking happy thoughts
And doing happy things
And being happy just to be a happy guy
Living in a happy world...
Being a happy guy living life in a happy world!