TG4 is to tell the story of how 'X Factor' star Mary Byrne's singing career began in a new documentary next month.

'A Star Is Byrne - Scéal Mary Byrne' follows the Dubliner from her first audition for TG4's talent show 'Nollaig No 1' in 2008 through to her triumph in the final.

The programme features previously unseen footage and interviews with the judges from the show and the singer's family and friends.

'A Star Is Byrne - Scéal Mary Byrne' airs on TG4 on Friday, 10 December at 8pm.