This is the chord progression of Who Can It Be by Ylvis on Piano, Ukulele, Guitar and Keyboard.

[Verse]
Em                                                                                  C
What\’s this? Empty Red Bull bottles lying on the ground
G                                                                      D
Who can it be, who can it be, who can it be?
Sergeant, over there!

[Verse]
Em                                                                                             C
I found a pack of protein bars and a membership card at Pokerstars
G                                               D
But still, who can it be, who can it be?
Em                        Fm
Who can it be?
Sergant come here! On the ground.

[Verse]
Fm                                                                                             C#
A smoothie made from healthy fruit and there a sweaty condom suit
G#                                               D#
My god, who can it be, who can it be?
I found this sir

[Verse]
Fm                                                                      C#
What\’s this, some DVD\’s; \”How to insult a Swede on skis\”?
G#                                                                      D#
Who can it be, who can it be, who can it be?
Fm
Who can it be?
Come on guys, think?

[Bridge]
F#                                                                      D
Tell me, where can he be? At the top of a tree?
A                                                                             E
Did he hide like a mole, down below in a hole?
B                                                                      G
Where did he run? Do you think he has a gun?
D          F#                 Bm                        Cm
Lets find him! Yes, before it is too late
Look, a secret clue!

[Verse]
Cm                                                                      G#
The keys to the apartment of the model Aylar Lie
D#                                                                      A#
Who can it be, who can it be, who can it be?
It must be close!

[Verse]
Fm                                                                      C#
Sir, I think there\’s something you should see
G#
The suspoect carved his name in a tree
C
Although he wrote \”it wasn\’t me\”
Fm
I think it was he (I think it was he)

[Outro]
C#
Oh no, it\’s he (oh no it is he)
Fm
It must be he (it must, must be he)
C#
Unfortunately
C                Fm
It must be he

For corrections please use the comment box below.