She can count Brad Pitt and Simon Cowell as her exes, has been privy to backstage gossip on every series of The X Factor and helped pick some of the contestants at judges’ houses.
But despite being a successful popstar in the eighties, she’s perhaps currently best-known today for her wacky outfits.
We are of course talking about Simon’s best friend Sinitta, who has revealed she will be charting her exciting life in an autobiography which she promises will be full of hot gossip.
“I have an album coming in the new year, really exciting – and a book! So look out for that. It’s an autobiography,” Sinitta told The Sun as she attended Nativity The Musical last night wearing a skirt made out of Christmas tree baubles.
She teased: “It’s really juicy and a long time coming, but it’s coming!”
Let’s hope she’ll allow Simon to proofread it first as she’s known him for more than 30 years so certainly knows a lot of his secrets.
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The pair met when Sinitta, 54, first found fame in the Eighties as a popstar and Simon was working in the music industry.
She was much more famous than him at the time after having hits with songs including So Macho.
They dated for a time and Sinitta even once revealed that she fell pregnant with his baby but decided to have an abortion.
After their relationship didn’t work out romantically, the pair remained the best of friends.
They holiday together every year and Sinitta is Simon’s closest confidant.
He’s also given her numerous on and offscreen roles on The X Factor over the years and she can often be seen sitting behind him in the audience.
In the early days, she was his partner to help pick his acts at judges’ houses.
She ensured her 2009 appearance was memorable as she wore nothing but palm leaves to help him choose the over 25s, including Olly Murs.
However, she was unhappy when Simon replaced her with more famous names in recent years in a bid to boost the ratings, this year welcoming Cheryl back.
Sinitta admitted this decision did cause her to stop speaking to Simon for a time as she said he’d promised her a “job for life” on the show.
It means she’s now happy spill the beans on everything she’s seen behind the scenes as she has nothing to lose.
The X Factor isn’t the only show Sinitta has inside information on.
She’s also appeared on I’m A Celebrity, The Jump and been a presenter on Loose Women.
More recently, she’s appeared on Celebrity First Dates in search of a new love after her marriage ended in 2010.
Sinitta, who has also adopted two children, certainly hasn’t had a quiet life and has met many celebs along the way.
Let’s hope they were nice to her or they might not like what they read next year!