The Prince and Princess of Wales surprised sports fans on Wednesday as they made an appearance at a Boston NBA game.
READ: Princess Kate's surprise basketball appearance has royal fans all saying same thing
Despite their long journey across the Atlantic, the royals were in high spirits as they sat courtside to watch Boston Celtics take on Miami Heat.
WATCH: Prince William and Princess Kate surprise crowds at Boston NBA game
And they even happily posed for a rare selfie taken by the Mayor of Boston, Michelle Wu.
SEE: Prince William and Princess Kate surprise crowds at Boston NBA game - best photos
DISCOVER: Princess Kate and Prince William to reunite with the Sussexes this week?
William and Kate can be seen smiling for the camera – with the Princess looking flawless in her Chanel jacket – as they posed alongside Governor-elect of Massachusetts Maura Healey, and Emilia Fazzalari, wife of Boston Celtics owner Wyc Grousbeck.
The Prince and Princess appeared in a rare selfie with Mayor Michelle Wu
Fans adored the candid snapshot with one writing: "Aw love this picture! Please send them lots of love and look after them x." A second wrote: "Princess Kate really is beautiful." And a third added: "Great photo!! @KensingtonRoyal are the good luck charms - Celtics Won!!!"
READ: William and Kate pay touching tribute to the late Queen as they arrive in Boston
MORE: Why Prince William and Princess Kate are 'super excited' to arrive in the US
At the start of the basketball game on Wednesday night, the Prince and Princess were seen watching intently as the Celtics raced into an early lead. They later stood for the national anthem The Star Spangled Banner before being introduced by a stadium announcer and shown on the big screen.
The couple were in high spirits at the game
Thursday will see William and Kate visit Greentown Labs, a tech hub which has been nurturing climate pioneers for more than a decade.
Greentown is believed to be the largest climate technology start-up incubator in North America, having supported more than 500 companies, since founded in 2011, that have created more than 9,000 jobs and raised more than four billion dollars (£3.3b) in funding.
Kate stole the show in her Chanel tweed jacket
They will also tour Roca, a non-profit organisation focusing on young people at risk of becoming involved in urban violence.
The couple will meet with leaders of the organisation to learn about their intervention model and spend time with women in the young mothers' programme, current members and alumni of the young men's programme.
Make sure you never miss a ROYAL story! Sign up to The Royal Explainer newsletter to receive your weekly dose of royal features and other exclusive content straight to your inbox.