Ahead of the royal baby's arrival, the Duke of Sussex gleefully watched the ballerinas as they rehearsed their pirouettes.
The prince laughs with kids and Sir Elton John onstage at the AIDS Conference 2018 in Amsterdam.
He's got his nose! The Duke and Duchess of Sussex have fun with little Walter Cullen at Croke Park in Dublin, Ireland during their royal visit in July 2018.
Prince Harry happily chats with Queen Elizabeth II at the Queen's Young Leaders Awards Ceremony in London on June 26, 2018.
Prince Harry and his actress fiancée show how good they are with kids as they sign autographs and shake hands at the Cardiff Castle on January 18, 2018.
Too cute! Prince Harry plays handball with children taking part in a StreetGames "Fit and Fed" activity session in London.
Let's just say here's a moment this young athlete will never forget!
The royal does his part to make sure the youngsters he works with always have the time of their lives.
As the royal prepares for his annual Invictus Games—this year in Toronto—he attends a trial for the U.K. teams where he and a pint-sized boxer share an adorable moment.
Never one to miss a game of cricket, Prince Harry stays focused during a community sporting event held during his 2016 visit to the Caribbean.
The famous redhead is joined by Queen Elizabeth II, Kate Middleton and Prince William at the Diamond Jubilee carriage procession in 2012.
While attending the Veterans' Mental Health Conference in London in March 2017, Prince Harry couldn't help but admire an assistance dog named Cooper. Too cute!
All eyes were on Prince Harry when he spoke to London school children involved in conservation activities in March 2017.
Prince Harry stops to pat Jester the dog as he attends the U.K. team trials for the Invictus Games in April 2017.
The always fabulous trio is all smiles arriving to a briefing for their Heads Together initiative in January 2017.
During his 2016 visit to Guyana, Prince Harry spent time with young students and teachers at the Joshua House Children's Centre.
There's something so special about this photo of Prince Harry and his niece, Princess Charlotte, and nephew, Prince George, at the Queen's 90th birthday parade in 2016.
Now this is an encounter this conservationists in the making won't soon forget!
The charitable lad leans into a conversation with a group of girls at the Nightingale Children's Home on the island of Barbados.
Prince Harry follows his brother in sister-in-law as they step out to attend London's World Mental Health Day celebration with Heads Together in 2016.
On a mission! William, Harry and Kate attend the launch of their Heads Together campaign in 2016.
There's nothing cuter than a hunky royal and adorable pooch!
The dynamic duo is known to enjoy a friendly game of polo every now and then, pictured here in 2015.