Nicky Hilton put on a dazzling display wearing a glittering sequin dress while her husband, James Rothschild, was dapper in a classic tuxedo while attending a wedding in new Instagram snaps she shared on Tuesday.The mother of three, 39, and the financier, 37, could be seen flashing big smiles as they supported her 'bestie's' lavish nuptials. The talented fashion designer, who recently attended the star-studded Marc Jacobs runway show, showed off her toned frame after welcoming her third child, a son, earlier last year in July. The blonde beauty also shares two daughters, Lily-Grace, six, and five-year-old Theodora 'Teddy' with James. The couple, who tied the knot in 2015 during a romantic ceremony in London, sent a smile towards the camera as they posed with mini caricatures of themselves at the reception. Cute! Nicky Hilton, 39, and her husband, James Rothschild, 37, dressed to impress while attending their friends' wedding in new Instagram snaps she shared on Tuesday Stunning: The socialite opted for a purple sequin gown with feathery details and glittering heels as she attended the nuptials over the weekend The socialite turned heads while wearing a form-fitting, purple sequin dress that fell down towards her ankles. Feathery details were added onto the arm cuffs for a fashionable edge to the ensemble. Nicky slipped into a pair of luxurious, silver rhinestone heels that were secured with straps for a flashy touch. Her blonde locks were parted to the side, and styled up into a chic up do, allowing her side bangs to lightly fall onto her forehead.