The pop diva is BFFs with a porn star, had sex on TV and has undergone a DRAMATIC transformation
The 32-year-old US reality star is set to send sparks flying when she enters the famous house tonight
INTRODUCING Celebrity Big Brother's most X-rated contestant yet.
Aubrey O'Day is a 32-year-old pop diva who has unashamedly had sex on television, is best friends with a porn star and has posed for the cover of Playboy.
As if that wasn't enough, the Los Angeles-based singer has also been booted out of a girl band and been fired by Donald Trump.
Aubrey, who has been craving the limelight since the age of five, shot to fame in 2004 on MTV reality show Making The Band 3.
She dropped out of college to star on the programme, which was created by Sean 'Diddy' Combs - but fortunately went on to bag a place in the five-piece girl group.
Danity Kane went on to score a number one album in the US and toured with acts including Christina Aguilera and the Pussycat Dolls.
The rumour mill went into overdrive after it was alleged Aubrey had hooked up with manager, P Diddy.
She slammed claims the pair had sex telling : “I definitely don’t approach sex as something fun to do on Friday night. I approach it with a lot of value.
"So that wouldn’t be somebody I’d be interested in sleeping with.”
Aubrey, renowned for her fiery attitude, was eventually dropped from the band following a number of spats.
The blonde bombshell went on to star in Hairspray The Musical on Broadway and had a role in the 2009 comedy, American High School.
In 2012 she appeared on The Celebrity Apprentice, which was fronted by US Presidential hopeful Donald Trump.
She finished in third place but was called “narcissistic, self-centered, evil and vicious” by her fellow candidates.
Aubrey briefly reunited with Danity Kane in 2013 before going on to form a new group called Dumblonde with former bandmate Shannon O’Bex.
She's also starred on Famously Single - where a load of reality TV stars try and find love while living in the same house - and caused a stir after admitting to having sex on TV.
She confessed to getting intimate with Jersey Shore's Pauly D saying: “We were really ‘first’ing it in the house. It shows the first time we kissed, the first time we had sex.
“There were cameras everywhere with night vision, so you can never get away from them.
"They weren’t disrespectful about it, it’s not like we were making a porn, but they had cameras in all of the rooms.”
Aubrey, who is a gay rights activist and is open about her fluid sexuality, also sent jaws dropping after admitting to masturbating over her best friend, ex-porn star Jenna Jameson.
She told : “I watched her [porn] before she was my BFF, I don’t watch her anymore.
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"I was actually masturbating one night and she was in it and I was like, 'Oh no!' I had to turn it off. It was horrible.”
Meanwhile, Aubrey, who posed nude for Playboy in March 2009, has come under fire for her changing looks.
The TV personality, who sports platinum blonde locks, a bee-stung pout and a wrinkle-free complexion, has denied claims she's had plastic surgery.
She told : “[The biggest misconception about me is] that I got caught up in fame or that I’ve had a lot of plastic surgery. What else have I read? Oh, that I’m not talented."
Fans have speculated that she's had a breast and bum augmentation, a nose job, cheek and lip fillers, and Botox.
But Aubrey says her changing face is down to “how much or how little” make-up she has on.
She added: “I see a lot of things about how I’ve had things done to my face or whatever, which none of that is the truth."