The stars in heaven do me everyday

The story:

I somehow knew that it wasn't right,
so when I sang along, I'd do it under
my breath. As much as I tried to
figure it out, it always sounded the
wrong way. Once, in a friend's car
with a really good stereo, I finally had
my lightbulb moment, and began to
laugh hysterically. I finally had to fess
up.