[James Corden:]
I'm Just A Batman
I'm Looking For Some Pop Rocks
Something That's Sweet Inside
You Look Like The Right Fun Size

[Niall Horan:]
Got Done Up Piratical
To Come Here For This Visit
Girl, When You Break Me Off A Kit Kat
I'm Gonna Make Your Tootsie Pop

[Chorus:]
If You're Scary, Let's Do It
Give It, My Candy
My Satchel's Waiting
Trick Or Treat On It

[James Corden:]
I'm Captain Sugar Daddy
Cuz I'm About To Starburst
Who's It Gonna Jujube
I'll Give It To You Good & Plenty

[Niall Horan:]
I Love You Now And Later
Girl, You're Just So Red Hot
You Just Gotta Charleston Chews
I'll Crush Your Candy 'til You Say Stop

[Chorus:]
If You're Scary, Let's Do It
Give It, My Candy
My Satchel's Waiting
Trick Or Treat On It

If We're Gonna Get Tasty, Baby
I'll Give You A Hershey's Kiss
Then A Bunch Of Swedish Fish
What's Your Halloween Fantasy?
You Want A Ghost?, Baby Boo
You Want A Cow?, Baby Moo

[Chorus:]
If You're Scary, Let's Do It
Give It, My Candy
My Satchel's Waiting
Trick Or Treat On It
[x2]