Kids at Harlem Children's Centre Mistakes Kate for Princess Elsa of 'Frozen'
Britain's Catherine, Duchess of Cambridge sits next to April, 4, (L) and Sammy, 4, in a pre-school class at the Northside Center for Childhood Development in New York, December 8, 2014Reuters

Young ones at a children's centre in Harlem, New York, thought the Duchess of Cambridge visiting them was Princess Elsa from Disney's animated movie "Frozen".

Even though Princess Kate's brunette hair and brown eyes did not quite come close to the blue-eyed, blonde princess, she did make a good impression on the children.

The children were also excited about the Christmas gifts that the Duchess brought for them.

The three to four-year-olds took part in many art and crafts activities to entertain Princess Kate.

Rose Ann Harris, director of early childhood services at the Northside Center for Child Development, said of the children: "They thought she was the Princess from Frozen. When they heard she was coming they thought it was Elsa - we said a Princess and they got a Princess," The Telegraph reports.

When the royal figure reached the children's centre on Fifth Avenue, she crouched down on the sidewalk outside to accept a bouquet of bright red flowers from a bunch of children who were waiting for her arrival. Later on going inside, apart from chatting with them, she also helped out with an art project.

"The visit meant everything to the children, they were thrilled and it acknowledges all the hard work of the staff," Harris said.

Princess kate is around five months pregnant with her second child and was seen wearing a black coat from British label 'Goat'. She had her chestnut-brown hair pinned halfway with her light curls brushing her shoulders. She was greeted at the centre by New York City's first lady, Chirlance McCray, who looked elegant in a plum-coloured coat.

Just when McCray and the Duchess of Cambridge entered the classroom, the children greeted Kate by saying loudly in chorus: "Princess," The Guardian reports.

They expected her to be the elegant Snow Queen from 'Frozen'.

'Frozen' is Disney's biggest hit ever and is the highest-grossing animated film of all times, mostly because of its appealing music. It narrates the story of Princess Anna who embarks on a journey to find her sister Princess Elsa. Meanwhile, Princess Elsa lives in self-imposed exile because she thinks her magical powers, which have brought perpetual winter upon their kingdom, can harm others.