James Arthur has publicly apologised for offensive lyrics on a 'diss' track he released online yesterday.

Last year's X Factor winner Arthur was goaded into recording the song by unsigned rapper Mickey Worthless.

Worthless posted his own track - Stay In Your Lane, James! - earlier this week, which attacked the Sony-signed artist for his talent TV show background.

Responding yesterday, Arthur released Hey Mickey! (Worthless) - a track not sanctioned by Sony - which contained the line: "You probably ...