"Shallow" is from the 2018 film A Star Is Born, performed by Lady Gaga and Bradley Cooper. It served as the first single from the film's soundtrack and was released on September 27, 2018 by Interscope Records. "Shallow" was written by Gaga with Mark Ronson, Anthony Rossomando, and Andrew Wyatt, and produced by her with Benjamin Rice.
It was heard three times in the film, most prominently during a sequence when Cooper's character Jackson Maine invites Gaga's character Ally to perform it onstage with him. The scene was filmed at Greek Theater in Los Angeles.
The song is performed in the key of G major with a moderate tempo of 96 beats per minute in common time. It follows a chord progression of Em7–D/F♯–G5–C–G5–D, and the vocals span from G3 to D5.