One is you make me happy
Two is you set me free
From all the things that held me
Back from just being me
Thank you for all the sweetness
Now I can finally breathe
Now I can finally breathe
But, baby, don't you see?

I still get frustrated, I can't lie
When you keep on doing things I don't like
And I hate your friends (Your friends)
And I hate your moods (Moods)
And I shouldn't love you

But I got 21 reasons why I do-do-do-do
Do-do-do-do-do, do-do-do-do
I got 21 reasons why I do-do-do-do
Do-do-do-do-do, do-do-do-do
I got 21 reasons why I do

Three is the way you hold me
That's what I waited for
Five shots, we're getting naughty
Moving out on the floor
You took away the lonely
And I let you comfort me
Loving the company
But, baby, don't you see?

I still get frustrated, I can't lie
When you keep on doing things I don't like
And I hate your friends (Your friends)
And I hate your moods (Moods)
And I shouldn't love you

But I got 21 reasons why I do-do-do-do
Do-do-do-do-do, do-do-do-do
I got 21 reasons why I do-do-do-do
Do-do-do-do-do, do-do-do-do
I got 21 reasons why I do

My friends say you ain't good enough
And maybe I should give you up
But I got my reasons and here comes another one
Here comes another one
One, two, three, four, five, six, seven, eight, nine, ten
Keep on countin'
I shouldn't love you

But I got 21 reasons why I do-do-do-do
Do-do-do-do-do, do-do-do-do
I got 21 reasons why I do-do-do-do
Do-do-do-do-do, do-do-do-do
I got 21 reasons why I do

One, two, three, four, five, six, seven, eight, nine, ten
Keep on countin'
I shouldn't love you
But I got 21 reasons why I do-do-do-do
Do-do-do-do-do, do-do-do-do
I got 21 reasons why I do