Lady Gaga co-wrote “Shallow” with Mark Ronson and performed the duet with Bradley Cooper. For this song alone, Gaga won both an Academy Award for Best Original Song and a Grammy Award for Best Pop Duo/Group Performance. “Shallow” is a major turning point in the film, as Ally is quickly invited to the stage to perform her song with Jackson.
Link: https://screenrant.com/lady-gaga-best-songs-for-films-top-gun-star-is-born/