Knock Knock
Who's there?
Oliver!
Oliver who?
Oliver troubles are over!

Knock Knock
Who's there?
Olivia!
Olivia who?
Olivia but I lost the key!

Knock Knock
Who's there?
Olivier!
Olivier who?
Olivier but I've lost my key!

Knock Knock
Who's there?
Ollie!
Ollie who?
Ollie time you say that, I wish you would cut it out!

Knock Knock
Who's there?
Oman!
Oman who?
Oman, you are cute!