Who’s in the Big Brother House
Here are the 13 contestants who have gone into the Celebrity Big Brother house:
:: Andrew Stone
Stone, who is best known from reality TV series Pineapple Dance Studios, has been dancing since the age of eight and has performed with Kylie Minogue, Christina Aguilera, Britney Spears and Ricky Martin.
He said: "I would say, as a dancer, I'm as good as Justin Timberlake."
Stone has already appeared in the Big Brother house in 2010, when he taught the housemates in a Glee-themed musical task.
Age: Cagey about his exact age but thought to be 38.
Most memorable moment to date: Taking part in an all-male tribute band to the Pussycat Dolls called the Alley Cat Dogs.
:: Michael Madsen
The actor has appeared in more than 150 films including Thelma and Louise and Free Willy, but is best known for his role as an ear-slicing gangster in Reservoir Dogs.
He is also a respected photographer and poet and published volume one of his Complete Poetic Works in 2005.
A father of five, Madsen has been married three times and filed for bankruptcy in 2009.
From: Chicago, Illinois
Most memorable moment to date: His role as the sadistic ex-convict Mr Blonde in Tarantino's Reservoir Dogs.
:: Denise Welch
Born in County Durham, the actress appeared in television shows such as Byker Grove and Auf Wiedersehen Pet before really making her name for herself as Marsha Stubbs in Soldier Soldier.
She also appeared in Coronation Street, Waterloo Road and in 2005 joined the Loose Women panel.
Known for her tumultuous private life, the actress has battled alcohol and drug addictions as well as depression.
Most memorable moment to date: Lifting up her top to flash Princess Beatrice whilst enjoying a night out at a posh private members club.
:: Frankie Cocozza
The wannabee singer caused a stir from his first appearance on the X Factor when he bared his backside to show off a tattooed list of girls he claimed to have slept with.
He made it through to the live shows with the help of his mentor, Gary Barlow, and kept winning the public vote despite a string of poor performances.
But his party lifestyle got the better of him when the producers kicked him off the show for bragging about his use of drugs.
Most memorable moment to date: Being kicked off the X Factor
:: Natalie Cassidy
Cassidy grew up on screen, playing Sonia in EastEnders. She appeared in the soap from 1993, winning a British Soap Award for Best Actress in 2001.
Outside EastEnders, she took part in Strictly Come Dancing, starred in reality show Natalie Cassidy: Becoming Mum, and released a top-selling fitness DVD.
Recently, it's her private life that's made the headlines when her ex, Adam Cottrell, was ordered by a court to perform 120 hours of unpaid work and made subject to a restraining order after he assaulted her at their Hertfordshire home.
Most memorable moment to date: Natalie's EastEnders alter-ego had a lesbian affair with a nursing colleague.
:: Georgia Salpa
The darling of the Irish tabloiods and one time darling of Calum Best.
Her modelling career started when she was 14 and she has promoted everything from fake tan to wrestling.
She also reached the final of FHM magazine's search for a High Street Honey and her relationship with Calum Best kept her in the news.
From: Greek-born but lives in Dublin.
Most memorable moment to date: Dropping out of the Tivoli panto with days to go to opening night, leaving producers non to happy.
:: Gareth Thomas
The former captain of the Welsh rugby team made history when he became the first Welshman to win 100 international caps in rugby union.
Thomas, nicknamed Alfie, is a legend on the pitch and is well known for his head-slapping celebration when he scores which is mimicked by fans.
He came out as gay in 2009 in what he said was a bid to highlight the homophobia he claimed was rampant in the sporting world.
He is a friend of Prince William and was a guest at the royal wedding last year. Another of the fashion lover's close friends is Christian Louboutin, who he calls Louby, and who designed a range of shoes in his honour.
From: Bridgend, South Wales
Most memorable moment to date: Coming out as gay in 2009 after splitting from his wife who he married as a teenager.
:: Kristina and Karissa Shannon
The glamour girl twins are best known for their roles as Playboy Playmates and moved into the legendary mansion in 2008, becoming two of Hugh Hefner's three girlfriends.
They starred in The Girls Next Door, a reality show set in the mansion, but moved out in 2010 after breaking up with the Playboy founder.
They had small roles in Somewhere, a film directed by Sofia Coppola which won top honours at the 2010 Venice International Film Festival.
From: Michigan, USA
Most memorable moment to date: Appearing as Miss July and Miss August 2009 in a combined issue of Playboy.
:: Romeo Dunn
DJ and rapper Romeo rose to fame as a member of garage pioneers So Solid Crew who had five top 20 hits between 2001 and 2003.
He enjoyed a solo career after the group split up and had a hit duet with American singer Christina Milian.
Away from music, he has appeared in reality show The Games and featured in Fool Around With...Romeo on Channel 4, in which he had to guess which girl out of four was single.
From: Battersea, south London
Most memorable moment to date: Hitting the top of the charts with So Solid Crew.
:: Kirk Norcross
The reality show star is a real ladies man, having dating several of his The Only Way is Essex co-stars, including former Celebrity Big Brother contestant Amy Childs.
The young entrepreneur owns Essex night-spot Sugar Hut, where the TOWIE stars hang out on the show.
He quit the Bafta winning reality show after the third series and admits he is enjoying his new-found fame.
Most memorable moment to date: Getting a matching nose job with ex-girlfriend Lauren Pope.
:: Nicola McLean
32G McLean is a former page three girl who has remodelled herself as a WAG after marrying non-league football player Tom Williams. They have two sons named Rocky and Striker.
In 2008 she took part in I'm A Celebrity...Get Me Out Of Here! and started a feud with fellow contestant David Van Day.
She isn't afraid to speak her mind, having several very public rows on Twitter, one with former Big Brother contestant Imogen Thomas.
Age: Claims to be 28 but is believed to be 30
Most memorable moment to date: Having a public spat on Twitter with fellow housemate Natasha Giggs.
:: Natasha Giggs
The 29-year-old mother-of-two is the sister-in-law of Manchester United legend Ryan Giggs, having married his brother Rhodri in Las Vegas in 2010,
Her time in the house could be stormy after she launched into a Twitter row with fellow housemate Nicola McLean.
Her motto on the social networking site is "If I want to, I will".
Most memorable moment to date: Starting an online row with one of her new housemates.