Na Na Na Na Na
I'm gonna lose my mind
Na Na Na Na Na
You are the reason why 

Left your heart by the front door baby
You don't need to come 'round my way no more
That's what my girlfriend said to me
At 10:23 on a lonely Monday morn
Found another and he treats me good
Like you never could
Go away I think you should
Needed you but you weren't there
So now I don't care
Then she put her finger in the air 

Baby how can you doubt my love
When you're the reason I'm smilin' (cuz baby love, the reason why)
If you deny my heart
Then you should know that it's for you that it's aching
Cuz everything I'll ever need is you

Na Na Na Na Na
I'm gonna lose my mind
Na Na Na Na Na
You are the reason why 

Yesterday I saw my ex girl at the mall
With some kid by the name of Tommy Smith
She was on his dick
And in the corner of her eye she saw me staring at Her and him
She kissed him
Then she smiled at me
They both started laughing
Then they walked passed me
She was looking at him like she looked at me
Right before we'd go home and do our thing
I said gimme one more chance I love you
Gimme another chance, I can't live life without you
She said get away from me boy I don't care
Walked away with one finger in the air 

Baby how can you doubt my love
When you're the reason I'm smilin' (cuz baby love, the reason why)
If you deny my heart
Then you should know that it's for you that it's aching
Cuz everything I'll ever need is you

Na Na Na Na Na
I'm gonna lose my mind
Na Na Na Na Na
You are the reason why 

Called her up on the telephone, my Casio read 2AM
Moonlight shone through my window had a song by Hendrix in my head
Never understood this girl,
This thing called love and the world we're in
Let it ring two more times, she wasn't there.
Threw my finger in the air. 

Baby how can you doubt my love
When you're the reason I'm smilin' (cuz baby love, the reason why)
If you deny my heart
Then you should know that it's for you that it's aching
Cuz everything I'll ever need is you
Na Na Na Na Na
I'm gonna lose my mind
Na Na Na Na Na
You are the reason why 

Baby how can you doubt my love
When you're the reason I'm smilin' (cuz baby love, the reason why)
If you deny my heart
Then you should know that it's for you that it's aching
Cuz everything I'll ever need is you