My first tab- Just made a few changes to the other tab.

Lights - Last Thing on Your Mind chords for this acoustic performance 
http://www.youtube.com/watch?v=ieHZRcWJWHs

standard tuning
capo on 4th fret 

Chords relevant to capo.

       C (x32010@1)               G (320003@1)              Em (022000@1)              Cmaj7 (x32000@1)e|----|x-----|    e|----|3-----|    e|----|x-----|    e|----|x-----|
B|----|1-----|    B|----|3-----|    B|----|0-----|    B|----|3-----|
G|----|0-----|    G|----|0-----|    G|----|0-----|    G|----|0-----|
D|----|2-----|    D|----|0-----|    D|----|2-----|    D|----|4-----|
A|----|3-----|    A|----|2-----|    A|----|2-----|    A|----|5-----|
E|----|3-----|    E|----|3-----|    E|----|0-----|    E|----|5-----|
                                                               
Cadd9
e|----|3-----|    
B|----|3-----|      
G|----|0-----|       
D|----|2-----|          
A|----|3-----|        
E|----|0-----|         
 

 intro

G (Strum once)

                Gdon't (320003@1)think too hard
                           Cmaj7if (x32000@1)you think it hurts that bad
                 Emdon't (022000@1)talk about it,
                     Cdon't (x32010@1)let it get you down
                G (320003@1)        Cmaj7it's (x32000@1)only one part of the story
                Em (022000@1)        
just let it go,
                       C (x32010@1)  
don't let it bring you down
Cmaj7
now ..

chrous

G (320003@1)                          Cadd9sing (x32030@1), the last thing on your mind
                      Gthe (320003@1)last word on your breath
                        Cmaj7i'll (x32000@1)be the one to keep you
                      Gi'll (320003@1)keep you at your best
                       Cadd9the (x32030@1)last thing on your mind
                        Gcause (320003@1)i don't need your mess
                        Cmaj7i'll (x32000@1)be the one to keep you
             Em (022000@1)one disaster less      

                   Gstraighten (320003@1)up your tie,
                    Cmaj7 (x32000@1)       
take the microphone
                 Em (022000@1)
forget about it,
                     Cdon't (x32010@1)let it get you down
       Cmaj7 (x32000@1)  Gnow (320003@1)is not the time
                   Cmaj7and (x32000@1)you're not all alone,
                 Emshut (022000@1)up about it
                     Cno (x32010@1)one can bring you down,
Cmaj7
now ..

Chorus:

G (320003@1)                          Cadd9sing (x32030@1), the last thing on your mind
                      Gthe (320003@1)last word on your breath
                    Cmaj7i'll (x32000@1)be the one to keep you
                      Gi'll (320003@1)keep you at your best
                       Cadd9the (x32030@1)last thing on your mind
                        Gcause (320003@1)i don't need your mess
                   Cmaj7i'll (x32000@1)be the one to keep you
             Em (022000@1)    Gone (320003@1)disaster less 

  

G (320003@1)       Em (022000@1)C (x32010@1)  G (320003@1)i'll be okay (sustain)      
G (320003@1)      Cmaj7 (x32000@1)  (sustain)  
i'll be okay
if you ..

G(Strum once)                 Cadd9(strum once)
sing , the last thing on your mind
                      G(Strum once)
the last word on your breath
                        Cmaj7(Strum once)
i'll be the one to keep you   
             Em(Strum (022000@1)once+hold)
one disaster less 

(Last chord either Em or 332000