LONDON, ENGLAND - FEBRUARY 06: Catherine, Duchess of Cambridge attends the Place2Be Big Assembly With Heads Together for Children's Mental Health Week at Mitchell Brook Primary School on February 6, 2017 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - FEBRUARY 06: Catherine, Duchess of Cambridge attends the Place2Be Big Assembly With Heads Together for Children's Mental Health Week at Mitchell Brook Primary School on February 6, 2017 in London, England. (Photo by Chris Jackson/Getty Images)
LONDON, ENGLAND - FEBRUARY 06: Catherine, Duchess of Cambridge attends the Place2Be Big Assembly With Heads Together for Children's Mental Health Week at Mitchell Brook Primary School on February 6, 2017 in London, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
LONDON, ENGLAND - FEBRUARY 06: Catherine, Duchess of Cambridge attends the Place2Be Big Assembly With Heads Together for Children's Mental Health Week at Mitchell Brook Primary School on February 6, 2017 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - FEBRUARY 06: Catherine, Duchess of Cambridge attends the Place2Be Big Assembly With Heads Together for Children's Mental Health Week at Mitchell Brook Primary School on February 6, 2017 in London, England. (Photo by Karwai Tang/WireImage)
