Kate Middleton Turns 40: A Look At The Duchess Royal Evolution

Kate Middleton, the Duchess of Cambridge, will celebrate her 40th birthday this weekend. As she hits this big milestone, her role in the royal family continues to evolve and expand. NBCs Kelly Cobiella reports for TODAY from Kensington Palace in London. NBC News royal commentator Daisy McAndrew dives deeper into Duchess Kates impact and influence. Subscribe to TODAY: Watch the latest from TODAY: About: TODAY brings you the latest headlines and expert tips on money, health and parenting. We wake up every morning to give you and your family all you need to start your day. If it matters to you, it matters to us. We are in the people business. Subscribe to our channel for exclusive TODAY archival footage our original web series.