Katy Perry - Firework chords

Pretty much the same chords throughout the whole song 

D, Em, Bm7, G 

Do you ever feel, feel so paper thin
Like a house of cards
One blow from caving in

Do you ever feel already buried deep
Six feet under scream
But no one seems to hear a thing

Do you know that tehre's still a chance for you
Cause there's a spark in you
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You just gotta ignite the light
And let it shine
Just own the night
Like the Fourth of July

Cause baby you're a firework
Come on show 'em what your worth
Make 'em go "Oh, oh, oh!"
As you shoot across the sky-y-y

Baby you're a firework
Come on let your colors burst
Make 'em go "Oh, oh, oh!"
You're gunna leave 'em fallin' down-own-own

You don't have to feel like a waste of space
You're original, cannot be replaced
If you only knew what the future holds
After a hurricane comes a rainbow