The song This Is It is performed by Kitty Wells .
Well, this is it, that day is here
That day I knew would come
When you would leave me, dear
Well, here I sit while teardrops fall
And wonder why I care
When you don't care at all
But I'm a fool that way
From a way back when
A fool who take you back
If you'd come back again
But this is it, you're gone
You're free, you'll find another love
But this is it for me
Well, this is it, that day is here
It's no surprising, yet
I can't hold back the tears
Well, here I sit and try to guess
How such an empty room's
So full of loneliness
Well even the clock has stopped
Somehow I guess you knew
That time's run out from me
It's over, it's all through
Yes, this is it, you're gone
You're free, you'll find another love
But this is it for me