One of the things we love most in the world is a celeb transformation. They're fascinating. So when we heard that 'Tesco' Mary Byrne from The X Factor's 2010 series had undergone a MAJOR look overhaul, we just had to get a look.
It's pretty safe to say that 'Tesco' Mary was one of the most beloved X Factor contestants of all time - she wasn't quite Susan Boyle material, but no-one was expecting her to have such a beautiful voice when she stepped onto the stage with her signature fringe.
Since leaving the show, the Irish songstress has enjoyed success with FOUR studio albums - and appeared on Loose Women earlier today to not only discuss the new series but also to show off her brand new look.
Ditching her natural brunette locks, Mary is now a blonde with a much shorter crop. But it's not just her hair that's different, as Mary revealed she's lost a whopping four-and-a-half stone in weight.
Confessing that it was down to her health, Mary revealed she'd been diagnosed with chronic arthritis which had been improved by the weight loss, adding that she'd decided to "do something about" her weight after failing health.
The biggest celebrity transformations...
Celebrity transformations slider with cover pic
1 of 33Swipe through to see the most amazing celebrity transformations of all time...
2 of 33Little Mix, then
Perrie Edwards, Leigh-Anne Pinnock, Jesy Nelson and Jade Thirlwall looked very young in 2011 after winning The X Factor. To be fair, they were all teenagers at the time!
3 of 33Little Mix, now
Now the biggest girl band on the planet, the girls look fantastic!
4 of 33Calvin Harris, then
Scottish DJ Calvin Harris pictured here in 2009. Sorry Calvin, but we're not sure that look would be Acceptable In The 80s - OR now.
5 of 33Calvin Harris, now
The 'One Kiss' hit-maker transformed into an A-list hunk, and has dated the likes of Taylor Swift and Rita Ora. Twit twoo!
6 of 33Cheryl, then
Girls Aloud singer Cheryl was just a fresh-faced teenager when she auditioned for Popstars: The Rivals in 2002.
7 of 33Cheryl, now
She's now an on-trend and super-glamorous mum-of-one, even walking the red carpet at a London Fashion Week show.
8 of 33Justin Bieber, then
Little Justin Bieber was just a Baby when he burst onto the scene in 2009...
9 of 33Justin Bieber, now
These days, he's of course grown up - but he looks pretty much the same! Apart from the fact that he no longer has the signature Bieber hairstyle, of course.
10 of 33Rihanna, then
A young Rihanna in 2005...
11 of 33Rihanna, now
The still cheeky Fenty grin is still there, and Rihanna continues to defy the aging process.
12 of 33Matthew Lewis, then
Harry Potter star Matthew Lewis starred in the film series as Neville Longbottom from 2001 to the last film in 2011, here pictured in 2004 at the Harry Potter and the Prisoner of Azkaban premiere.
13 of 33Matthew Lewis, now
Matthew grew up into such a good-looking chap that the makeup department on the Potter films had to try and make him less attractive in the later films, even spawning the phrase 'Longbottomed'.
14 of 33Miley Cyrus, then
Miley Cyrus in her Hannah Montana days...
15 of 33Miley Cyrus, now
She may have gone through various transformations, but Miley is still recognisable.
16 of 33Gareth Gates, then
Pop Idol contestant Gareth Gates on the show back in 2001...
17 of 33Gareth Gates, now
Here in 2017, he showing off his muscular physique alongside his girlfriend Faye Brookes.
18 of 33Katy Perry, then
Katy Perry rocking long black hair in 2004...
19 of 33Katy Perry, now
And showing off her shorter, blonde pixie cut in 2017.
20 of 33Chris Pratt, then
Jurassic Park actor Chris Pratt back in 2008...
21 of 33Chris Pratt, now
Shed the pounds and now has a slimmer physique.
22 of 33Kylie Jenner, then
A fresh faced Kylie Jenner in 2008...
23 of 33Kylie Jenner, now
Now rocking a platinum blonde 'do at the age of 21 in November 2018.
24 of 33Zac Efron, then
Zac Efron in his High School Musical days back in 2007...
25 of 33Zac Efron
10 years later, he was looking incredibly dapper at the Australian premiere for The Greatest Showman in 2017 - even sporting a 'tache.
26 of 33Justin Timberlake, then
JT rocking his epic tight curls with frosted tips back in 2000...
27 of 33Justin Timberlake, now
He's so much more grown-up in September 2018 whilst performing in Las Vegas.
28 of 33Johnny Vegas, then
TV personality Johnny Vegas, real name Michael Pennington, is well known for his larger frame.
29 of 33Johnny Vegas, now
But in 2018, he revealed that he'd lost two stone.
30 of 33Jack Ryder, then
Jack Ryder, AKA Jamie Mitchell from EastEnders, was a noughties heartthrob if ever there was one.
31 of 33Jack Ryder, now
In 2018, Jack was announced to be joining Holby City - and look at him now!
32 of 33Jonathan Tapper, then
Gogglebox's Jonathan Tapper was 21st 3lbs at his heaviest whilst appearing on the show with his family - wife Nikki, daughter Amy and son Josh.
33 of 33Jonathan Tapper, now
But with the help of a diet plan, Jonathan was able to lose a whopping three stone in just 12 weeks, and six inches off his waist!
The former checkout assistant also revealed that she's kept in touch with her fellow X Factor alumni, saying, "I’m still good friends with Wagner on Facebook, he’s a great guy. People said he was this and that but people didn’t know him."
She's also pals with none other than Harry Styles, "I’m still in contact with Harry but not so much now because he’s become very big."
She looks AMAZING - well done Mary!
NOW WATCH: All the winners of The X Factor so far...
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