Potato pie

Someday, someday, someday
Someday you're gonna wake up singing
Someday you're gonna wake up tired, so tired
It makes you feel like a horseshoe in a swimming pool
'Cause you know, you don't belong

Someday, someday, someday
I move left, you move right
I'm like a blind man on a motorbike
You say potato but I say pie
Tell me why? Tell me why?

Someday, you'll be sorry
Someday, sad
And someday you might even wake up
Just a little bit mad

Maybe tomorrow, it might be tonight
But in the meantime
I was hoping you might
Solve this puzzle of mine
Someday