There was a message of support for Kate Middleton from her younger brother James Middleton this week over her having hosted her Christmas carol concert. Princess Kate , 42, hosted the annual event at Westminster Abbey in London earlier this month but the star-studded concert was only broadcast on ITV on Tuesday evening. She was joined by other members of the Royal Family , including her husband Prince William , 42, and their three children. Other guests included her parents Carole Middleton ,