The Duke and Duchess of Cambridge attended a formal black tie dinner at Claridge’s Hotel in London on May 8, 2012. The event was hosted by the Thirty Club whose members are some of the most influential and powerful individuals in advertising and media. With this being the Queen’s Diamond Jubilee as well as the fact that he is soon to turn thirty years old, the duke, who had been invited to speak to the group before, chose this year to deliver a speech to the Thirty Club. The duchess, who accompanied her husband, garnered her share of attention with a new gown. The cream colored floor length gown with high neckline and long sleeves had a long slit at the front. Catherine accompanied it with silver colored high heels and matching evening clutch. Photos by Bauer Griffin and FameFlynet Pictures.