Lady Gaga, Bradley Cooper Duet in Video for 'A Star Is Born' Single "Shallow"

The song marks the first one performed together by their characters in the upcoming film.

The first single for the A Star Is Born soundtrack is out.

"Shallow" is a duet between Bradley Cooper's and Lady Gaga's characters and marks the first song that they sing together in the film.

The video features clips from the movie, which revolves around two singers on opposite ends of their careers. A Star Is Born also marks Cooper’s directorial debut; he also co-wrote the script.

Gaga debuted song last week on Zane Lowe’s World Record on Apple Music’s Beats 1.

"Shallow" was co-written by Lady Gaga, Mark Ronson, Anthony Rossomando and Andrew Wyatt.

The hits theaters Oct. 5, the same day the soundtrack drops.

Watch the video for "Shallow" below.