Prince George and Princess Charlotte adorably mirrored their parents as they joined other members of the Royal Family at a Christmas Carol service tonight.
The two youngsters arrived at Westminster Abbey with Prince William and Kate Middleton and were seen talking and smiling.
Both mirrored their parents, with Charlotte, seven, wearing a purple dress, the same colour as the one her mum Kate wore.
George, nine, also looked smart as he donned a blue suit, with a tie and a coat over it, just like his dad William.
The Princess of Wales is hosting the concert at Westminster Abbey, with royals including Princess Beatrice, Princess Eugenie, Mike and Zara Tindall coming together for the event.
The concert will be broadcast as part of Royal Carols: Together At Christmas, a special programme narrated by Catherine Zeta Jones, which will air on ITV1 at Christmas Eve.
The special Christmas service is dedicated to the late Queen, and will recognise the selfless efforts of individuals, families and communities across the UK.
A synopsis for the show outlines that the service aims to dedicate to the late monarch and the values that she demonstrated throughout her life, including "duty, empathy, faith, service, kindness, compassion and support for others".
It adds: "These principles are shared and personified by the inspirational guests who have been invited to the Abbey in recognition of their tireless work to help and care for those around them."
Kate looked incredibly festive in a beautiful fit and flare plum V neck style dress for the evening.
She matched her look with a pair of suede heeled shoes and a glittery clutch bag, and accessorised with what appeared to be drop ruby gem earrings.
She greeted clergy at the door of the abbey before going inside where she chatted with guests and enthusiastically high-fived children.
Kate met and thanked those taking part in the service, including Paddington star Hugh Bonneville and singer Melanie C.
She also chatted with Princesses Eugenie and Beatrice before coming back out to welcome her husband and two children, who arrived before 5pm.
More than 1,800 people are gathering in the abbey for the concert, staged to recognise the "selfless efforts of individuals, families and communities across the UK, and celebrate and showcase the joy that human connection and togetherness can bring".
Kensington Palace said the second carol service Kate has held is dedicated to the late Queen and the values she demonstrated throughout her life, including "duty, empathy, faith, service, kindness, compassion and support for others".
The palace said these principles are "shared and personified by the inspirational guests who have been invited to the abbey in recognition of their tireless work to help and care for those around them".
A Christmas tree in the abbey is decorated with small Paddington Bear decorations, a nod to the late Queen's famous sketch, while guests were greeted with atmospheric snowflakes from a snow machine as they arrived at the entrance.
The palace tweeted pictures of the decorations and said: "Getting ready to welcome our #TogetherAtChristmas guests, celebrating those who have gone above and beyond in their communities and paying tribute to Her Late Majesty The Queen."
The Abbey is filled with festive decorations to provide a beautiful Christmas backdrop and some of the nation’s most beloved carols, including O Come, All Ye Faithful, will be sung.
There will be performances from Craig David, Alexis Ffrench and Samantha Barks, and a special duet from Alfie Boe and Melanie C.
