- It's a form of Scandinavian Shepherdess's call,
or cow call.
They, as far as I, as far as I've been told,
the cow shepherdess's would use a certain call
to bring their particular flock back and they would,
and these animals would know where to go.
And so when we were thinking of dramatizing this moment,
how do you dramatize Elsa's need to go beyond her home,
everything she knows, everything she has loved
to find her purpose in the world.
It was almost like the idea of something calling her home.
♪ Into the unknown ♪
♪ Oh oh oh ♪
- What we've done is based on kulning,
I wouldn't say it's authentic.
I mean it's based on it and it's a very high call,
we have the pop singer Aurora who's just incredible
and such a special quirky person,
you know, performing it.
We couldn't have been happier with it.
The other thing about it is that what the actual tune
that she is kulning is the Dies Irae
which is a musical reference that goes way back
to early times in the Church
and it's like the Day of Wrath,
it's all about death,
it's like a musical signal for death.
So it's this idea that the call may be dangerous,
the call may lead her through danger on the way
to where she's meant to be.
- Wow it's I mean, so perfectly
thematically tied to the movie.
- It was right there for us,
and there is some in the first film if you listen.
It's in the score and the soundtrack.
- So you are looking back and listening to
some of these older tunes and melodies
and then incorporating that into
the songs as you're writing them?
- It started with Into the Unknown.
We wrote that (singing) that kids
are now singing in the mall to each other.
We wrote it for that and we wanted it to become
a duet with Elsa where she responds to the call.
She sings it back and they sing it in harmony
and it goes into major and it climaxes
with this kind of duet.
And after that we kind of back fitted the call
that she would have to be hearing throughout
the entire movie was that sequence of notes
and we spotted it in different places.
- ♪ Here I am ♪
♪ I have come so far ♪
♪ Are you the one I've been looking for ♪
♪ All of my life ♪
♪ Oh show yourself ♪
- You are what you've been waiting for
is just like such an immensely powerful lyric.
- Barack Obama.
- I was getting, where did that come from?
- I don't think he invented it either.
It's just like the idea that
part of your job as an adult is to
become your own, to show yourself who you're meant to be.
And it's like you're not waiting for your hero.
You are the hero.
- We saw some footage today
and there's some of it where
I assume you are on a web cam
and you're working with Josh Gad
who's in the studio.
Does that feel weird to kind of have that remove?
I mean you're working so intimately together
on recording these songs there.
- You know most of the time, we like to be in the room
because it's just more intimate,
but when we can't possibly make it out,
we live in Brooklyn,
it's the next best thing.
We have a special button.
We press it when we want to talk.
And we let it go when we want to listen.
It's just a cool little.
We're in our tree house with our CB radio
and we get to hear this perfect quality audio back
and it works.
- And of course I want to congrats you
on the Oscar nomination this year.
- Thank you.
- I just had to find you guys in the Oscar luncheon photo.
And you're kind of front and center.
- We were right in the middle (crosstalk).
They called Kristen up first and me second
and they put us on either side of Oscar
and I'm sure there was no special meaning to that,
but it did mean that we had to
sort of stand there for the longest.
- It feels like, oh that's funny.
I didn't even think of that.
- Our feet hurt.
We were ready to go to bed.
- Well, hopefully it's a good luck charm then.
♪ Into the unknown ♪