The Prince and Princess of Wales will attend a huge annual event this week, Kensington Palace has revealed. It has been confirmed that Prince William and Kate will be the royal guests of honour at the Royal Variety Performance at the Royal Albert Hall on Wednesday evening. This year's show will be hosted by Jason Manford and artists such Jessie J will be performing and there will be a special a 40th-anniversary celebration of the musical Les Misérables, as well as performances by the cast of