Prince George reveals what he wants for Christmas this year in letter to Santa

— -- Prince George thinks he's on Santa's nice list this year and wants one special toy under the Christmas tree.

The 4-year-old son of Prince William and Princess Kate filled out his very own list for Santa Claus, circling that he was "nice" and not "naughty" this year.

George also wrote that he'd like a police car from Santa.

William, 35, presented George's list to Santa today at an event at a Christmas market in Helsinki on his royal tour to Helsinki, Finland.

"I’ve seen you and I had to give you this letter," William said to Santa, affirming that George was indeed a nice boy. "He hasn’t written down many requests, so I think one request is probably OK."

The note also gave a glimpse of the young prince’s signature.

William's official two-day trip to Finland in celebration of the country's 100th anniversary of Independence came just days after the engagement of his younger brother, Prince Harry, to American actress Meghan Markle.

At an event Wednesday, William joked that Harry’s engagement now means that “he stays out of my fridge and will stop scrounging my food, which he’s done for the last few years!”

William said he and his wife, Princess Kate, are also “delighted” for Harry and Markle.

“We’re very excited, delighted for them both,” said William. “We’re wishing them all the happiness in this very exciting time.”

Harry, who served as William's best man at his 2011 wedding to Kate, and Markle plan to wed at St. George's Chapel at Windsor Castle in May.

2018 will be a busy year for the royals with Harry's wedding and a new baby on the way for William and Kate. Kate is pregnant with the couple's third child.