Capo I or IV (they actually play it on Iv but I find it easier to sing with the capo on 
the first fret)

(single strumming)
          GShould've (320003@1)kissed you there
            DI (xx0232@1)should've held your face
            EmI (022000@1)should've watched those eyes
           CInstead (x32010@1)of run in place
            GI (320003@1)should've called you out
            DI (xx0232@1)should've said your name
            EmI (022000@1)should've turned around
            CI (x32010@1)should've looked again

Chorus :
    D (xx0232@1) Em (022000@1)               C (x32010@1)    G (320003@1)    GBut (320003@1)oh, I'm staring at the mess I made
Em (022000@1)                C (x32010@1)    GI (320003@1)'m staring at the mess I made
Em (022000@1)                C (x32010@1)    GI (320003@1)'m staring at the mess I made
       D (xx0232@1)       Em (022000@1)                C (x32010@1)     GAs (320003@1)you turn, you take your heart and walk away

(strumming)
          GShould've (320003@1)held my ground
           DI (xx0232@1)could've been redeemed
          EmFor (022000@1)every second chance
                CThat (x32010@1)changed its mind on me
            GI (320003@1)should've spoken up
            DI (xx0232@1)should've proudly claimed
           EmThat (022000@1)oh my head's to blame
         CFor (x32010@1)all my heart's mistakes

Chorus :

D (xx0232@1) Em (022000@1)               C (x32010@1)    G (320003@1)    GBut (320003@1)oh, I'm staring at the mess I made
Em (022000@1)                C (x32010@1)    GI (320003@1)'m staring at the mess I made
Em (022000@1)                C (x32010@1)    GI (320003@1)'m staring at the mess I made
       D (xx0232@1)       Em (022000@1)                C (x32010@1)     GAs (320003@1)you turn, you take your heart and walk away

G (320003@1)   D (xx0232@1)     Em (022000@1)  CAnd (x32010@1)it's you, and it's you
    G (320003@1)   D (xx0232@1)     Em (022000@1)  CAnd (x32010@1)it's you, and it's you
         G (320003@1)     D (xx0232@1)          Em (022000@1)  CAnd (x32010@1)it's falling down, as you walk away
         G (320003@1)    D (xx0232@1)        Em (022000@1)DAnd (xx0232@1)it's on me now, as you go

Chorus :
    D (xx0232@1) Em (022000@1)               C (x32010@1)    G (320003@1)    GBut (320003@1)oh, I'm staring at the mess I made
Em (022000@1)                C (x32010@1)    GI (320003@1)'m staring at the mess I made
Em (022000@1)                C (x32010@1)    GI (320003@1)'m staring at the mess I made
       D (xx0232@1)       Em (022000@1)                C (x32010@1)     GAs (320003@1)you turn, you take your heart and walk away

G (320003@1)     D (xx0232@1)          Em (022000@1)  CAnd (x32010@1)it's falling down, as you walk away
         G (320003@1)    D (xx0232@1)        Em (022000@1)DAnd (xx0232@1)it's on me now, as you go

Chorus :
    D (xx0232@1) Em (022000@1)               C (x32010@1)    G (320003@1)    GBut (320003@1)oh, I'm staring at the mess I made
Em (022000@1)                C (x32010@1)    GI (320003@1)'m staring at the mess I made
Em (022000@1)                C (x32010@1)    GI (320003@1)'m staring at the mess I made
       D (xx0232@1)       Em (022000@1)                CAs (x32010@1)you turn, you take your heart and walk away