CAN you imagine Calum Best without his sharp dress sense and groomed style? Or Nicola McLean dressed in camouflaged army gear instead of bright bodycon dresses?
The extreme transformations the Celebrity Big Brother housemates have undergone over the years will have you wondering if that's not an alter ego we're watching in the house...
Bianca Gascoigne
53
Bianca Gascoigne in 1999 with her family, including mum Sheryl Gascoigne, at the Rugrats London premiereCredit: Getty Images - FilmMagic
53
Bianca Gascoigne won Love Island with Calum Best in 2006Credit: Rex Features
53
Nowadays Bianca is more made-up and wears blonde hair extensionsCredit: PA:Press Association
Bianca Gascoigne used to sport a more natural look, before finding fame on Love Island in 2006.
Without her bleached mermaid hair the reality star looks remarkably different.
James Jordan
53
James Jordan sporting a long hairstyle before finding fame with his now wife Ola JordanCredit: ITV
53
The former Strictly dancer's luscious locks are long goneCredit: PA:Press Association
The 38-year-old CBB star shared a throwback snap with his now-wife Ola Jordan when he appeared on Loose Women last September.
Before finding fame, the wind-up merchant used to sport a Tarzan look - but we reckon he looks much better these days...
Nicola McLean
53
WAG Nicola used to be a corporal in the army cadetsCredit: George Wright
53
The 35-year-old blonde bombshell is barely recognisable in these military shotsCredit: George Wright
53
Nicole was 16 at the time these photos were takenCredit: George Wright
53
With her pristine appearance it's hard to imagine Nicola was ever in the armyCredit: PA:Press Association
These throwback pictures emerged of the CBB star in full army get-up posing with her gun for the camera.
Jedward
53
Jedward having holy communion long before finding fame on The X FactorCredit: Sourced
53
A year before finding fame, the twins queued up for an autograph from Mundy at a HMV storeCredit: Sourced
53
The twins are now known for their over-the-top bleached quiffs which they carefully style daily in the CBB houseCredit: PA
Twins Jedward became the infamous joke act on The X Factor in 2009.
But the inseparable pair haven't always sported such eye-catching hair styles...
Jasmine Waltz
53
Jasmine Waltz looks unrecognisable in photos taken just seven years agoCredit: Splash News
53
Jasmine was already a natural beauty, but looks startlingly different nowCredit: Splash News
53
Before being evicted by her fellow housemates, Stacy Francis slammed Jasmine for her 'fake face'Credit: Splash News
The American reality show regular Jasmine Waltz looks amazingly different in modelling snaps taken just seven years ago.
The 2010 photoshoot shows her flaunting a more natural look.
Heidi Montag
53
Heidi Montag was a naturally pretty girlCredit: Rex Features
53
When Heidi first starred in reality series The Hills, she had more of a girl-next-door lookCredit: Rex Features
53
Heidi has now had several procedures to change herself, including several boob jobsCredit: Getty Images
Heidi Montag first found fame on the American reality TV series The Hills.
Despite being naturally very pretty, she has undergone several procedures to change her face and body.
Spencer Pratt
53
Spencer looks cute and innocent in this throwback snap with his sister, fellow reality TV star Stephanie Pratt, and another female relativeCredit: Instagram
53
Fresh-faced Spencer during the early days on his time on The HillsCredit: Wikipedia
53
More recently, Spencer sported a much less preened look in 2010 - around the time he was arrested for possessing illegal firearmsCredit: Fame/ Barcroft Media
53
Spencer is acting as one CBB contestant with his wife, Heidi, and the pair are known as SpeidiCredit: PA:Press Association
Spencer Pratt became the most hated star of The Hills after fans blamed him for breaking up Heidi and Lauren Conrad's friendship.
It's hard to imagine the innocent looking lad in his throwback snap could become such a master manipulator...
Coleen Nolan
53
Coleen Nolan (far right) was the youngest member of the Irish family girl group The NolansCredit: Alamy
53
The Nolan sisters appearing on the Morecambe and Wise TV show in 1974Credit: Alamy
53
Now Coleen is best known for co-presenting panel show Loose WomenCredit: PA:Press Association
Coleen Nolan first rose to fame as the youngest member of girl group The Nolans.
Four of the sisters reformed in 2009 for a UK tour but Coleen is now best known for her role on Loose Women.
Calum Best
53
Calum as a baby being fed by his late father and iconic footballer George BestCredit: Scope Features
53
In his younger years, Calum modelled for River IslandCredit: River Island
53
Calum used to sport a curly blonde mop of hairCredit: River Island
53
Few people will remember these River Island campaign shotsCredit: River Island
53
Nowdays the reality TV star has all the girls in the house fighting over himCredit: PA:Press Association
Son to famous footballer George Best and axed fellow-CBB contestant Angie Best, flirty Calum has all the girls' attention in the house.
His carefully-preened look and sharp dress sense is a far cry from his bad boy image in the early days.
Angie Best
53
Angie when she was 29 years old with then-husband George and three-year-old CalumCredit: PA:Press Association Archive
53
Angie posing with a young CalumCredit: Rex Features
53
Angie, 64, became the first housemate to be evicted from the new seriesCredit: PA:Press Association
Angie Best surprised her son by entering the new series of Celebrity Big Brother alongside him.
Their close relationship was clear for everyone to see and these cute throwback pics will melt your heart.
Jamie O'Hara
53
Jamie O'Hara playing for Tottenham Hotspurs against Charlton AthleticCredit: PA:Press Association
53
Jamie with his ex-wife Danielle Lloyd in 2009 at the UK premiere of 'Transformers: Revenge of the Fallen'Credit: Getty Images - WireImage
53
Jamie is in between clubs at the moment and has certainly grown up since his early days playing for SpursCredit: PA:Press Association
Footballer Jamie O'Hara is best known for his marriage to and acrimonious split from Danielle Lloyd.
It's no wonder she looks like a different person these days...
Kim Woodburn
53
Kim Woodburn with her half brother Robert, and elder sister Gloria in 1947Credit: Sourced
53
Kim's straight-talking nature has already landed her in some hot water in the houseCredit: Channel 5
Kim Woodburn, 74, is best known for her role in Channel 4's How Clean Is Your House? but the TV host was a looker in her youth and also tried her hand at modelling.