In reality, though, “Shallow” — which, to be clear, is both beautiful and profound! — was written by Gaga along with three other professional songwriters; indeed, “A Star Is Born” draws on the expertise of an expansive team of insiders (including Mark Ronson, Julia Michaels and Diane Warren), many of whom made their names with precisely the type of shiny pop tunes the film goes on to present as evidence of Ally’s having sold out.
Source: L.A. Times – Entertainment News