Jethro Tull
"Some Day The Sun Won't Shine For You"

In the morning -- gonna get my things together
Packing up, I'm leaving this place
I don't believe you'll cry
There'll be a smile upon your face

I didn't think how much you'd hurt me
That's something I laugh about
Bring in the good times, baby
And let the bad times out

That old sun keeps on shining
But someday it won't shine for you
In the morning I'll be leaving
I'll leave your mother too