Princess Catherine is going all out for Christmas this year! On Thursday, the Princess of Wales announced the theme and star-studded lineup for her annual Together at Christmas Carol Service, which will take place on Friday, December 5, at Westminster Abbey in London and be broadcast on ITV1 and ITVX on Christmas Eve. In an announcement shared by Kensington Palace, it was unveiled that Kate Winslet, Ted Lasso's Hannah Waddingham, Bastille's Dan Smith, and actor Chiwetel Ejiofor will be participating in the event.