Knock knock
Who's there
Ketchup
Ketchup who
Ketchup to me and I'll tell you
Knock knock
Who's there
Interrupting cow
Interrupting cow wh... Mooooooo
Knock knock
Who's there
Mary
Mary who
Mary Christmas
Knock knock
Who's there
Robin
Robin who
Robin the piggy bank again
Knock knock
Who's there
Adore
Adore who
Adores between us, open up
