The So You Think You Can Dance presenter sizzled in a LWD (that's a little white dress!) as she stepped out at the 8th Annual BritWeek launch party in Los Angeles, America.
It looks like gorgeous Cat has been enjoying lapping up the sun in LA as she paraded her bronzed pins in her chic frock.
Her dress featured a high neckline plus an in-built belt to highlight her svelte waistline.
To top off her sizzling ensemble, the stylista - who used to present SM:TV Live (remember that?!) - wore a pair of pointed courts with metallic ankle straps.
And we can't get enough of Cat's a-mazing Kate Spade clutch, which was made to look like a book called Paris and the Single Girl.
But of course Cat isn't a single girl anymore - she's happily married after tying the knot with Irish comedian Patrick Kielty in Rome back in 2012.
Patrick also attended last night's event, sporting a pale grey suit jacket teamed with black trousers while proudly holding hands with his stunning missus.
What do you think of Cat's dress? Let us know by commenting below as the best comment across the site each week wins £50!
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