This is my first tab so it may be slightly wrong! However, this sounds perfectly 
okay on both piano and guitar :)

Ellie Goulding-Explosions
Standard Tuning-No Capo

Intro: F  Dm x2
Verse 1:
F (133211@1)                    Dm (xx0231@1)         F (133211@1)        DmYou (xx0231@1)tremble like you'd seen a ghost and i gave in
F (133211@1)                    Dm (xx0231@1)                 F (133211@1)             DmI (xx0231@1)lack the things you need the most you said, where have you been
F (133211@1)                    Dm (xx0231@1)                 F (133211@1)           DmYou (xx0231@1)wasted all that sweetness to run and hide, I wonder why
F (133211@1)                     Dm (xx0231@1)                        F (133211@1)            DmI (xx0231@1)remind you of the days you poured your heart into, but you never tried

Pre-Chorus:
DmI've (xx0231@1)fallen from grace
DmTook (xx0231@1)a blow to my face
    BbI've (x1333x@1)loved and I've lost
    CI've (x32010@1)loved and I've lost

Chorus:
  Bb (x1333x@1)    Dm (xx0231@1)     FExplosions...on (133211@1)the day you wake up
F (133211@1)                        DmC   AmNeeding (x02210@1)somebody and you've learned
        Bb (x1333x@1)    FIt's (133211@1)okay to be afraid
Bb (x1333x@1)                        F (133211@1)  DmBut (xx0231@1)it will never be the same
                        F (133211@1)      DmIt (xx0231@1)will never be the same

Verse 2:
F (133211@1)                 DmYou (xx0231@1)left my soul bleeding in the dark
F (133211@1)              DmSo (xx0231@1)you could be king
F (133211@1)                   Dm (xx0231@1)                   F (133211@1)                  DmThe (xx0231@1)rules you set are still untold to me and I lost faith in everything

Pre-Chorus 2:
         Am (x02210@1)                       DmThe (xx0231@1)nights you could cope, your intentions were gold
            AmBut (x02210@1)the mountains will shake
           CI (x32010@1)need to know I can still make

Chorus 2:
  Bb (x1333x@1)    Dm (xx0231@1)     FExplosions...on (133211@1)the day you wake up
F (133211@1)                        DmC   AmNeeding (x02210@1)somebody and you've learned
        Bb (x1333x@1)    FIt's (133211@1)okay to be afraid
Bb (x1333x@1)                        F (133211@1)  DmBut (xx0231@1)it will never be the same
                        DmF GmBb
It will never be the same

Bridge:
DmAnd (xx0231@1)as the floods move in
FAnd (133211@1)your body starts to sink
GmI (355333@1)was the last thing on your mind
BbI (x1333x@1)know you better than you think
Dm (xx0231@1)                      C (x32010@1)                 GmCause (355333@1)it's simple darling, I gave you a warning
                      Bb (x1333x@1)                            DmNow (xx0231@1)everything you own is falling from the sky in pieces
                  F (133211@1)                GmSo (355333@1)watch them fall with you, in slow motion
                            BbI (x1333x@1)pray that you will find peace of mind
                    DmAnd (xx0231@1)I'll find you another time
C (x32010@1)                   GmI'll (355333@1)love you, another time

Final Chorus:

Bb (x1333x@1)    Dm (xx0231@1)     FExplosions...on (133211@1)the day you wake up
F (133211@1)                        DmC   AmNeeding (x02210@1)somebody and you've learned
        Bb (x1333x@1)    FIt's (133211@1)okay to be afraid
Bb (x1333x@1)                        F (133211@1)  DmBut (xx0231@1)it will never be the same
                        F (133211@1)      DmIt (xx0231@1)will never be the same

Outro: F   Dm x4
Finish on F



Enjoy Playing This Great Song :)