The blonde actress rocked French chic in a cream coloured peplum top and black tapered trousers which she teamed with the cutest pair of suede brown mules.
But it was her hair and make-up that caught our eye. Proving that berry hues totally work in spring, Sienna opted for a raspberry lip which gave her full pout a just bitten feel.
Our make-up bag is never without the bd Trade Secrets Lipstick in Stylish, £5.99 from Tesco - apply and blot for a a finish that will stay put way past lunch time. We're also fangirling over the brand new Clinique Lip Pop in Punch Pop, £16 for a bright twist on a vampy lip.
We also love Sienna's hair was twisted into a cutesy mini bun secured merely with a hair tie for her glam arrival in Nice. The American beauty paired the simple yet chic up-do with a quick and easy sweeping side fringe for a classic update.
If you're afraid of going for the chop, fake it like Sienna by making a parting at the far left hand side of your head and bringing all of your hair over to the right using the Kent Small Porcupine Brush, £6.25.
Then scoop all of your hair into a pony tail using the Superdrug Brown Hairbands, £2.59 but on the second tie, instead of looping your hair all the way through, stop half way to create the bun.
You'll be rocking French chic in no time. Next stop, Cannes!
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