The Duchess of Cambridge was greeted by cheers and excitement on her arrival at a primary school in north London today.
Kate visited to the Blessed Sacrament School to see the work of a project she launched last year, which aims to help families affected by addiction.
Her arrival attracted lots of onlookers keen to catch a glimpse of royalty while school children sat on the playground waving England flags, calling for the Duchess' attention.
Kate, wearing a coral dress by Goat, chatted to the excited children about their favourite subjects and what they like most about school.
Five-year-old T'shai said he enjoyed Kate's visit, adding: "'I've never seen a princess before."
Nathan, also five, said he told Kate his favourite thing was "books", while Ezekiel, 4, said "lunchtime and playing".
Kate was joined by comedian John Bishop, who helped launch the charity effort, and the pair spoke to those involved in a pilot programme for the school-based project.
The initiative M-Pact (Moving Parents and Children Together) Plus aims to provide early support for schoolchildren affected by a parent's drug or alcohol misuse.
Speaking about Kate's involvement with the project, the comedian said: "She's committed to it as a person and probably even more so as a mother, because you realise children are such fragile things and you've got to try and support them when they're at their weakest."