Gwyneth Paltrow (L) and Kate Hudson at event London - Arabstoday Gwyneth Paltrow hosted a party Tuesday at the Mark's Club in London to celebrate the launch of GOOP's summer season. The Iron Man star called upon her nearest and dearest to join her for the glamorous event, and the party hostess definitely did not disappoint when it came to her style. Wearing a silk printed dress with sheer sleeves complete with an edgy black belt from Prabal Gurung's Autumn/Winter 2013 collection, Gwyneth Paltrow looked effortlessly elegant. She teamed the dress with a pair of black multi-strap heels by Tom Ford. Star guests at the party included close friend Kate Hudson, who channelled summer chic in an all-white ensemble, designers Tom Ford and Matthew Williamson, and TV host Davina McCall.