歌手:A List
专辑:《어린이집 유치원 베스트 영어 명작 동요》

作词 : 에이리스트
Knock, knock, knock.
Is it Mommy?
Knock, knock, knock.
Who is it? Who is it?
Hey kids! Mommy’s here.
Open, open, open the door.

Knock, knock, knock.
Is it Mommy?
Knock, knock, knock.
Who is it? Who is it?
Hey kids! Mommy’s here.
Open, open, open the door.