Betty Boop - Mysterious Mose (1930)

Lyrics:

There's a man of mystery that's roaming through the land
Ooh-ooh-ooh-ooh-ooh!
Far and near you hear of him; he's found on every hand
Ooh-ooh-ooh-ooh-ooh!
Every city, town and village knows of him by now
There's a way to recognize him; let me tell you how
When your path at midnight dark by a graveyard goes
And someone whistles, "Whoooooo!"
That's Mysterious Mose!

On some dark and stormy night, while the tempest blows
If someone whistles, "Whooooo!"
That's Mysterious Mose!

He sees all, he knows all; he's just been everywhere
Some night, he might wait for you upon the stair!

So when you're going down the cellar, walk upon your toes
And if someone whistles, "Whooooo!"
That's Mysterious Mose!
Everybody's talking of me everywhere you go
Ooh-ooh-ooh-ooh-ooh!
Who I am or what I am nobody seems to know
Ooh-ooh-ooh-ooh-ooh!
In the mountains, at the seashore, anywhere at all
Anytime of day or night you'll have to hear me call
"That's Mysterious Mose!"