Here's an interesting song from Porter Wagoner, also recorded with a young-ish Dolly Parton.

WHAT AIN'T TO BE JUST MIGHT HAPPEN
(Porter Wagoner)

I've learned to live my life just a little bit lighter
Gonna look on the lonely days a little bit brighter
My heart's been throwed around it ain't done enough laughin'
What is to be will be, what ain't to be just might happen

It don't do no good (no good, no good) to worry none (worry none)
Just turns your hair gray while you're still young
Love can make you sing start your hands to clappin'
What is to be will be, what ain't to be just might happen

You can't never tell when love might find you
Could be miles away or right beside you
Some makes you hurt real bad, some makes you happy
What is to be will be, what ain't to be just might happen

It don't do no good (no good, no good) to worry none (worry none)
Just turns your hair gray while you're young
Love can make you sing start your hands to clappin'
What is to be will be, what ain't to be just might happen

I had a love one time, sent me out on a ledge
Fourteen stories high standin' on the edge
I don't want that kind no more to start my world a crackin'
What is to be will be, what ain't to be just might happen

It don't do no good (no good, no good) to worry none (worry none)
Just turns your hair gray while you're young
Love can make you sing start your hands to clappin'
What is to be will be, what ain't to be just might happen
What is to be will be, what ain't to be just might happen


Source: LyricFind
Songwriters: Porter Wagoner


1972 Porter Wagoner recording: https://www.youtube.com/watch?v=o2IIIEXH7fU

1973 recording by Dolly Parton: https://www.youtube.com/watch?v=--bUsdzu8-0