This is a beautiful song that folk legends Good Old War did with The Wadsworth Sisters. 
It is also a relatively easy song to learn.
(The tab is based on THIS video: http://www.youtube.com/watch?v=kMccwr8M8Go.)

Chords used:
Gm (244300) D (000232) E (022100) A (002220)

(Acapella)
I never want to leave when I do
I never want to leave when I do
Every time I leave, you cry
"Stay by my side"

Oh baby, you should know I trust you
And baby, you should know I'll miss you
But every time you leave, I cry
"Stay by my side"

 E      A         D    Gm
Just because I've gone away
 E      A         D    Gm
Doesn't mean I'll be gone forever
 E        A        D   Gm
There's a point in our love
 E     A        D      Gm
From across the world, (Ooooh)

  E             A            D
I never want to leave when I do
Gm
(Don't walk away)
  E             A            D
I never want to leave when I do
Gm
(Stay with me)
      E       A         D
Every time I leave, you cry
Gm
"Stay by my side"

Outro E A D Gm
(Xylophone Solo)