A version of this story appears in the First Look issue ofEntertainment Weekly, on newsstands Friday.

But Coopers will enter the world to the beat of its own drum.

Theres no better way to express that than through singing because theres nowhere to hide when youre singing.

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Credit: Neal Preston/Warner Bros.

A Star is Bornis in theaters on May 18. Who are these characters as people, what brings them together, whats the dynamic of their relationship?

I was also very interested in the character of Ally being a bit different than the other versions.

Shes not an ingenue; shes not this innocent person.

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Neal Preston/Warner Bros.

Its celebratory, wish fulfillment, and heartbreaking.

Gaga composed most of the music, correct?

What other producers or songwriters did you work with?We had many wonderful writers.

Mark Ronson, too.

Theres no singing in playback, which was terrifying, but its key to the movie!

It makes all the difference.

Its night and day.

LikeLa La LandandLes Mis, a lot of the songs were recorded live on the set, right?

I had the luxury of time.

So youre saying youre comfortable enough to tour with this stuff?

[Laughs] Thatd be incredible.

But if anybody would show up, thatd be great.

She made me so comfortable, from day one.

I had the benefit of preparation.

That never really entered into my head, thank God!

Its a song [Stefani] had written with Mark Ronson called The Shallow.

How do the songs fit into the film?

Is there a uniting thread?Its an integral part of the entire story.

Even the lyrics and where the songs fall in the movie all have to do with the story.

Its a major artery of the entire film.

In that sense, youll be blown away by what Stefanis created.