One D's Harry Styles pens track with John Legend for X Factor USA winners

The One Direction member wrote the song with the 'All of Me' hitmaker as part of his work unrelated to the boy band and it has been pitched to US 'X Factor' duo Alex and Sierra for their debut album.

According to the Daily Mirror newspaper, Sierra said: "Our favourite [song] is one that Harry Styles wrote with John Legend, it's beautiful and lovely.