Artist : Coldplay
Song : O
Album : Ghost Stories
No capo, standard tuning
Bbsus2 could be played Bbsus2/D, for me it sounds better.
VERSE:
D#          Bbsus2
A flock of birds 
Gm         Fsus4       Dm7
Hovering above
D#               Bbsus2
Just a flock of birds
Gm                        Fsus4      Dm7  
That's how you think of love
CHORUS:
      D#   Dm7  
And I always
                Gm
Look up to the sky 
                  Fsus4
Pray before the dawn
               D#  Dm7
Cause they fly always
                  Gm
Sometimes they arrive
                    Fsus4
Sometimes they are gone
      Dm7 D# 
They fly on
INTERLUDE: D#, Bsus2 (x2)
VERSE:
D#           Bbsus2
A flock of birds
Gm        Fsus4         Dm7
Hovering above
D#              Bbsus2
Into smoke I'm turned and rise 
Gm             Fsus4       Dm7
Following them up
CHORUS:
        D#  Dm7
Still I always
                Gm
Look up to the sky
                 Fsus4
Pray before the dawn
       Dm7     D# Dm7
Cause they fly away
                  Gm
One minute they arrive
                        Fsus4
Next you know they're gone
      Dm7 D#   Dm7  G   Fsus4
They fly on
Dm7  D#        Dm7  G   Fsus4    
Fly on             Oh
OUTRO:
   Dm7 D#        Fsus4
So fly on, ride through
Dm7                     Gm
Maybe one day I'll fly next to you
Dm7 D#        Fsus4
Fly on, ride through
Dm7                     Gm
Maybe one day I'll can fly with you
Dm7  D#    Bbsus2  D#  
Fly on
Bbsus2 D#    Bbsus2  D#  
Fly    on
Bbsus2 D#
Fly    on