I was too lazy to transcribe the intro played in the track featured on Pink's album "I'm
Dead", but I'll assure you that strumming G gently will make an equally nice effect. 
the tab.

G (320003@1)             Em (022000@1)name="chord_x32010@1">C
I have seen the rain
		GI (320003@1)have felt the pain
        Em (022000@1) C (x32010@1)             CI (x32010@1)don't know where I'll be tomorrow
        G (320003@1)            EmI (022000@1)don't know where I'm going
        C (x32010@1)                  GI (320003@1)don't even know where I've been
      Em (022000@1)     D (xx0232@1)     C (x32010@1)       GBut (320003@1)I know I'd like to see them again.

(Strum G for a few seconds before continuing)

G (320003@1)                DSpend (xx0232@1)my days just searching
AmSpend (x02210@1)my nights in dreams
G (320003@1)                  DStop (xx0232@1)looking over my shoulder, baby,
     AmI've (x02210@1)stopped wonderin' what it means
G (320003@1)       D (xx0232@1)       C (x32010@1)     G (320003@1)  G (320003@1)        
   C (x32010@1)            GDrop (320003@1)out, burn out, soldier ho - oh they said I should've been more
Em (022000@1)             C (x32010@1)                 D (xx0232@1)        C (x32010@1)  
  GProbably (320003@1)so if I hadn't been in that crazy damn Vietnam war.

(As before, strum G a few times before moving on)

G (320003@1)             Em (022000@1)name="chord_x32010@1">C
I have seen the rain
                  GI've (320003@1)survived the pain
Em (022000@1)                 COh (x32010@1)I've been home 30 years or so
        D (xx0232@1)           C (x32010@1)        GAnd (320003@1)I'm just stepping up for the blame

(Strum G)

G (320003@1)                DSpend (xx0232@1)my days just searching
AmSpend (x02210@1)my nights in dreams
G (320003@1)                  DStop (xx0232@1)looking over my shoulder, baby,
     AmI've (x02210@1)stopped wonderin' what it means
G (320003@1)       D (xx0232@1)       C (x32010@1)     G (320003@1)  G (320003@1)        
   C (x32010@1)            GDrop (320003@1)out, burn out, soldier ho - oh they said I should've been more
Em (022000@1)             C (x32010@1)                 D (xx0232@1)        C (x32010@1)  
  GProbably (320003@1)so if I hadn't been in that crazy damn Vietnam war.

(Strum G again)

G (320003@1)              Em (022000@1)CWe (x32010@1)have seen the rain, together
                   GWe've (320003@1)survived the pain, forever (and)
Em (022000@1)            COh (x32010@1)it's good to home again
     D (xx0232@1)     C (x32010@1)        GIt's (320003@1)good to be with my friends
Em (022000@1)               COh (x32010@1)it's good to be home again
     D (xx0232@1)     C (x32010@1)       GIt's (320003@1)good to feel that rain