Pregnant Kate Middleton continued to showcase her maternity style as she accompanied the Queen on an official royal outing to mark the 150th anniversary of the London Underground.
The Duchess of Cambridge Joins the Queen to Celebrate 150 Years of the Tube
What to Read Next
Fifty States of Great: Can You Name Every Movie in Our Great American Supercut?
Yahoo Movies Staff
Box Office: 'Inside Out' and 'Jurassic' Rule Over 'Terminator' and 'Magic Mike XXL'
The Hollywood Reporter