Prince William and Kate Middleton have arrived at the Together at Christmas carol service that’s being hosted at Westminster Abbey today.The Duchess of Cambridge, 39, dazzled in a red coat dress with matching heels as The Duke of Cambridge, also 39, wore, a suit with a red tie.The event was spearheaded by the Duchess and, as per a statement from Kensington Palace, the service will “pay tribute to the incredible work of individuals and organisations across the UK who have supported their