Stylish Sisi Alert: Rihanna Stuns in Lilac Molly Goddard Gown, for Fenty Beauty Launch in London

The singer who is on a roll following the success of her new makeup line, Fenty Beauty, was a beauty in lilac at the launch of the brand in London. 
She wore a knee length, Lilac, ruffled ball gown.Her accessories are Chopard diamond jewelries( she also collaborated with the brand on a collection) which she matched with René Caovilla sandals.

Does she look like a Barbie doll in Lilac or what?