Managed to find what I was looking for, Three Steps to Heaven, by Eddie Cochran.

now there are three steps to heaven
just listen and you will plainly see
and as life travels on and things do go wrong
just follow steps one, two and three
step one, you find a girl you love
step two, she falls in love with you
step three, you kiss and hold her tightly
yeah that sure seems like heaven to me
the formula for heaven's very simply
just follow the rules and you will see
and as life travels on and things do go wrong
just follow steps one, two and three

Eddie Cochran -
Showing my age now this was 1960.