How about

I WISH I WAS SINGLE AGAIN

When I was single, Oh then, Oh then,
When I was single, Oh then,
When I was single,
My money did jingle,
I wish I was single again, again,
I wish I was single again.

I married me a wife, Oh then, Oh then,
I married me a wife, Oh then,
I married me a wife,
She's the plague of my LIfe,
And I wished I was single again, again,
I wished I was single again.

My wife she died, Oh then, Oh then,
My wife she died, Oh then,
My wife she died,
I laughed and I cried,
To think I was single again, again,
To think I was single again.

I married another, Oh then, Oh then,
I married another, Oh then,
I married another,
The devil's grandmother,
And I wished I was single again, again,
I wished I was single again.

Good luck with the wedding, anyway!