The glamour model stepped out in an optical illusion crop top and matching skirt to attend the Style For Stroke event at Cafe Kaizen along with a host of famous faces.
Though it seems Casey was the one to stand out in her black and white ensemble.The former Celebrity Big Brother star wore towering black boots to go with her outfit and kept her jewellery to a minimum with just a pair of diamond studs, a few rings and bracelets.
Her luscious long locks were coiffed into loose waves and she accentuated her eyes with some false lashes and strong eyebrows.
Casey enjoyed the night of charity with her Made In Chelsea pal Cheska Hull, Jenny Frost, presenter Lilah Parsons and Brooklyn Beckham.
The event was put on in aid of the Style For Stroke initiative, founded by Nick Ede, to raise funds and awareness for the Stroke Association.
Casey has turned into quite the philanthropist of late, as she is also holding her own event to raise money for a good cause.
The model is throwing her support behind Macmillan Cancer Support by hosting an après-ski party with a winter wonderland-theme.
'I love Christmas - it's literally my favourite time of year!' she told Reveal magazine.
'There's such a buzz in the air. It is about having fun and spending time with your loved ones. Me and my friends always have pre-Christmas drinks of some kind and when I heard about Macmillan's Wonderland après-ski party idea I thought, 'I just have to do that!'
Macmillan Cancer Support, are also asking people to host their very own winter-themed parties to raise money for the cause.
'They had me at the words "chalet-chic",' Casey said. 'Everyone loves fancy dress, and this theme's brilliant – from old school 80's neon to Nordic cool, you can totally glam it up.
'And the beauty of all this is that it actually means something. We all know someone affected by cancer, don't we? And we'll all be going to a Christmas party (or two) so why not throw your own party to fundraise and make sure no one is left facing cancer alone.
She added: 'Macmillan's Wonderland party is Christmas at its best, and I for one cannot wait to host mine. Selfies to follow!'
