Please be true, Mary Lou
If you don't, I'll be blue
Mary Lou, please be mine
If you don't, I'll break down

I'll tell you all of my adventures, down to the last detail
I'll tell you how I got arrested, and what I used for bail

Please be true, Mary Lou
If you don't, I'll be blue

Please don't run, Mary Lou
That's no fun, I'll be blue