Ain't No Mountain High Enough -- Marvin Gaye and Tammi Terrell (1967)

Great song, now forever tainted by its inclusion in a good movie (Stepmom) featuring a scene so sad that it is used to induce depression in psychology experiments (seriously). Those kids' mom is dying of cancer.

Listen baby, ain't no mountain high,
Ain't no valley low, ain't no river wide enough baby
If you need me call me, no matter where you are,
No matter how far; don't worry baby
Just call my name; I'll be there in a hurry
You don't have to worry,

Oh baby there ain't no mountain high enough,
Ain't no valley low enough,
Ain't no river wide enough
To keep me from getting to you babe

Remember the day I set you free
I told you you could always count on me darling
From that day on, I made a vow,
I'll be there when you want me,
Some way, some how

Oh baby there ain't no mountain high enough,
Ain't no valley low enough,
Ain't no river wide enough
To keep me from getting to you babe

Oh no darling
No wind, no rain
Or winters cold can stop me baby, no no baby
'Cause you are my goal
If you're ever in trouble;
I'll be there on the double
Just send for me, oh baby, ha

My love is alive
Way down in my heart
Although we are miles apart
If you ever need a helping hand,
I'll be there on the double
Just as fast as I can
Don't you know that there

Ain't no mountain high enough,
Ain't no valley low enough,
Ain't no river wide enough
To keep me from getting to you babe

Don'tcha know that there
Ain't no mountain high enough,
Ain't no valley low enough,
Ain't no river wide enough
Ain't mountain high enough
Ain't no valley low enough