So this song is fairly easy. The chords are basic and beginners shouldn't have a problem 
playing it! (:
In the studio version they added a F# in the verse but Nick doesn't play it live, so an 
alternative would be just playing the A a bar longer, as Nick does it live (:
I hope that makes sense & have fun!
-Sally

INTRO:
G D A

e|-----3-2~-2-0~-----|
B|-3-3-----------3-2~|
G|-------------------|
D|-------------------|
A|-------------------|
E|-------------------|

e|-----3-2~-2-0~-----|
B|---3-----------3-3-|
G|-------------------|
D|-------------------|
A|-------------------|
E|-------------------|

VERSE:
Bm (x24432@1)           G (320003@1)               A (x02220@1)                (F#)
   Walking on a tightrope with my back against the wall
I really want to let you in but I'm scared in case I fall
I'm staring into emptiness 'cos it's easier to see
Just draw back the curtains and turn up the lights and you'll see

CHORUS:
         G (320003@1)              DWhen (xx0232@1)the lights go up
             AI (x02220@1)can be you, I can be me
         G (320003@1)              DWhen (xx0232@1)the lights go up
          AI (x02220@1)can be free
I can be free

REPEAT INTRO
G D A

VERSE:
Just when you think nobody's listening
Everybody knows your name
And when you step into the sunshine
life will never be the same
well this time you'll forget your lonliness
and then you'll start to shine
I'm starting to see with a new pair of eyes
I'm alive

CHORUS:
When the lights go up
I can be you, I can be me
When the lights go up
I can be free

When the lights go up
I can be you, I can be me
I can be anything I want to
I can be free

BRIDGE:
     BmAs (x24432@1)I look out tonight at a sea of the faces
     GI've (320003@1)dreamed of living my life just like this
D (xx0232@1)                                       AI've (x02220@1)finally found a place on earth to breathe
    BmI'm (x24432@1)pinching myself so that I could be certain
    GMy (320003@1)heart starts to skip as they draw back the curtains
     DJust (xx0232@1)look at me now
                     ALook (x02220@1)at me now I'm free

CHORUS:
When the lights go up
I can be you, I can be me
When the lights go up
I can be free