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.
"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.
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."