By Rebecca Davison for MailOnline
Published: 08:06 GMT, 8 January 2020 | Updated: 08:31 GMT, 8 January 2020
X Factor’s ‘Tesco Mary’ Byrne has showed off her incredible six stone weight loss and brand new look.
The singer, 58. a former Tesco worker who took part in the 2010 series of the show has since revealed that her weight crept up to 21 stone after appearing on the show.
She told the Irish Mirror: 'I looked at the picture of me on the show and me now and I honestly was shocked.
All change: X Factor’s 'Tesco Mary' Byrne, 58, showed off her incredible SIX stone weight loss on Instagram after her weight had crept up to 21 stone
'Because it has happened gradually over the decade I guess I haven’t noticed it as much but yes, it is a shocking amount of weight loss. I was just under 21 stone on the show and I am now just over 15 stone.'
Mary said that the results have had such a positive influence over her health that she wants to come off her anti-depressants.
She praised her daughter for inspiring her to make a change.
Before: Mary revealed that she had chronic arthritis, which had improved since she had lost weight and revealed she was no longer on cholesterol tablets (pictured in 2010)
Now and then: Mary has said her daughter has been the driving force behind her weight