If you both like country music then consider “Rockin’ Years”, a duet by Dolly Parton & Ricky Van Shelton. A slow waltz in which the couple promise to love each other always; through all stages of their lives.

“Rockin’ chairs, rockin’ babies, rock-a-bye, rock of ages
Side by side we’ll be together always”

Lyrics Excerpts:-

“I’ll do everything I can to make you proud to be my man
And I’ll fulfill all you fantasies
I guess we’re promising a lot, but for now it’s all we’ve got
And I’ll stand by you thru our rockin’ years

Rockin’ chairs, rockin’ babies, rock-a-bye, rock of ages
Side by side we’ll be together always
And if you’ll hold me tight when you love me
That’s all I’ll ask of you
And I’ll stand by you thru our rockin’ years

I’ll be your friend, I’ll be your lover
Until the end, there’ll be no other
‘And my heart has only room for one
Yes, I’ll always love you, and I’ll always be here for you
And I’ll stand by you thru our rockin’ years”