Reets who has no qualms about flashing her curves, treated guests to a cheeky glimpse of side boob as she paraded around in a printed swimsuit that boasted a very daring high-leg cut and a scooped neckline!
The X Factor judge who is constantly flying back and forth between the U.K and The States to keep on top of her hectic work schedule, teamed the body-baring number with a pair of distressed, baggy jeans proving that she can pretty much pull off anything!
And it looks like the recent Glamour cover star has added to her collection of Parisian-inspired berets as she hid her platinum blonde tresses under this little leather number - we like!
Singer pal Nick Jonas who is rumoured to be dating Keeping Up With The Kardashians star Kendall Jenner decided to keep his ensemble a bit more casual.
A plain white tee and a tan bomber jacket completed his laid-back party getup. But hang on a second - is that a cigar you're desperately trying to conceal from the camera Nick? Didn't anyone ever tell you that smoking kills?
The pair partied well into the early hours thanks to a stellar DJ set put on by Nick's older brother and Gigi Hadid's beau, Joe Jonas.
We guess our invite got lost in the post...
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