Yeah - we went there!
The former X Factor judge drew gasps (of the good kind, duh!) when she rocked up to the party in this traffic-stopping sheer number (HELLO, undies!) adorned with embroidered roses and a whole 'loada sparkle.
Never one to blend into the crowd, the Body On Me singer posed up a storm in the eye-catching getup and had no qualms about giving the paparazzi and celebrity guests a glimpse of her barely there bra and high-waisted knickers.
Super-confident Rita flashed a bit of boob as she rubbed shoulders with Laura Whitmore, Ellie Goulding and fashion designer Tommy Hilfiger - which could have been just a tad awkward for her. She did date his son, after all...
Rita - currently the face of fashion hub Tezenis - showed off her flawless blonde locks which she wore in effortless, ethereal tousles (kudos to hairdresser Chris Appleton!) and she gleamed under the countless camera flashes thanks to lashings and lashings of face and body highlighter.
Can we just be her, already?
Last month Reets set tongues wagging when she was spotted leaving a London restaurant a few minutes after Formula One driver Lewis Hamilton. The couple enjoyed a cosy dinner date together before setting off in separate cars.
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