歌詞：
Knock knock trick or treat
Who are you
I'm a ghost I'm a little ghost
Knock knock trick or treat
Who are you
I'm a ghost I'm a little ghost
Knock knock trick or treat
Who are you
I'm a cowboy I'm a little cowboy
Knock knock trick or treat
Who are you
I'm a cowboy I'm a little cowboy
Knock knock trick or treat
Who are you
I'm a witch I'm a little witch
Knock knock trick or treat
Who are you
I'm a witch I'm a little witch
Knock knock trick or treat
Who are you
I'm a monster I'm a little monster
Knock knock trick or treat
Who are you
I'm a monster I'm a little monster
Knock knock trick or treat
Who are you
I'm a ballerina a little ballerina
Knock knock trick or treat
Who are you
I'm a ballerina a little ballerina
Knock knock trick or treat
Who are you
I'm a pirate I'm a little pirate
Knock knock trick or treat
Who are you
I'm a pirate I'm a little pirate
Knock knock trick or treat
Happy Halloween happy Halloween
Knock knock trick or treat
Happy Halloween happy Halloween
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