Segun lo q puedo escuchar de la cancion, me parece q dice esto. Fijate vos si la podes completar, capas lo entendes mejor q yo

--- Ferry Corsten - Who`s Knocking ----

ooooooooh!
(whisper) Don't ever say goodbye.
(whisper) Don't ever say goodbye.
(whisper) Don't ever say goodbye.

stop that beat
before we get something serious
something dangerous

stop that call

before we get to something.. out of control
that leads uncontrollabe
this crazy night

jump back on boy say the music hits again
jump back on boy say the music ride so high
jump back on boy say the music hits again
jump back on boy say the music ride so hi-ii-igh

gonna say goodbyeeeeeeeeeeeeeeeeeeeee

¿¿¿just wanna say boom
don't go changing???

Once again

knocking on the door in the heat of the night
feels like something's going crazy
my soul is wild

who's there
knocking at the door again
feels like my hearts going crazy
I've gone wild inside

tonight...
tonight...

who's there?
inside my soul tonight
is it you?

tell me
yes...

who's there?
behind the (those) doors tonight

tell me it's you

are you there?
are you there?!
are you there?!?!?
are you there?!!?!?!?
are you there??!?!?!??!?!!!!

hello?
hello!?

who's there?
behind these doors tonight

once again the silence calls
once again my heart recalls
once again my mind is bawled
once again I feel your call
once again the silence bawls
once again my heart recalls
one thing that can change you all

tell me again
who's knocking at the door?
who's knocking at the door?

take me back again

once again the silence calls
once again my heart recalls
as my feelings so revolve
tell me again
who's knocking at the door?
who's knocking at the door?

jump back on boy say the music hits again
jump back on boy say the music ride so high jump back on boy say the music hits again
jump back on boy say the music ride so hi-ii-igh

gonna say goodbyeeeeeeeeeeeeeeeeeeeeeeeeeee

just wanna say boom
don't go changing

once again...