( CNN ) -- Prince William and Kate got the royal treatment Monday . The Duke and Duchess of Cambridge chatted with President Obama and Hillary Clinton , received cheers from people on the street and met Jay-Z , Beyonce and King James -- also known as basketball star LeBron James . They even got a look at American-style protest as demonstrators marched outside Barclays Center in Brooklyn to show their anger about the lack of an indictment in the Eric Garner chokehold death . William and Kate arrived Sunday for a three-day trip , their first to the Big Apple . Reporting from New York , CNN royal correspondent Max Foster said Kate was the star of the show . Screams greeted the Duchess of Cambridge when she arrived at a children 's craft group in Harlem , greeted by the first lady of New York City , Chirlane McCray , amid tight security . Excitement in the street . `` They were very excited even to see the motorcade , and there is a real buzz around the city today , '' Foster said . `` I think that association with Diana ( Prince William 's late mother ) , who used to come to New York a lot -- the biggest star in the world -- and Kate seems to be the closest replacement they have to Diana in this day and age . '' Inside , Kate looked over some girls making crafts when an adult asked , `` Do you know who 's coming to visit you today ? '' `` Princess ! '' the girls said . `` And you know they think you 're out of 'Frozen , ' `` the adult said . Kate laughed . William jetted down to Washington for a quick visit with President Obama at the White House . The two men sat in chairs and tried to chat during a photo op while a swarm of reporters and photographers crowded around them . The visit underscored `` the special relationship '' between the United States and the United Kingdom , the White House said . William addresses World Bank . William next spoke at a session of the World Bank about the need for an international effort to stop illegal wildlife trading . `` Cooperation is our greatest weapon against the poachers and traffickers who rely on evading individual national initiatives , '' he said . `` Our collective goal must be to reduce the wildlife trade by making it harder : denying traffickers access to transportation , putting up barriers to their illegal activities and holding people accountable for their actions . '' William flew back to New York on a U.S. Airways shuttle , first class . One passenger tweeted a photo of the prince looking as if he were searching for a place to stash his carry-on luggage . Another passenger , CNN 's Anderson Cooper , tweeted , `` Prince William just got on my DC shuttle flight '' and `` I 'm hoping this means an on time departure . '' It did . Monday night , William and Kate attended a reception organized by the Royal Foundation in recognition of the conservation work carried out by Tusk Trust and United for Wildlife partners , including the Wildlife Conservation Society , Conservation International and The Nature Conservancy . Hillary Clinton , the former first lady and possible presidential candidate , was there , along with daughter Chelsea . Basketball , Jay-Z and Beyonce . Finally , Kate and William made it to the Barclays Center for a game between the Brooklyn Nets and James ' Cleveland Cavaliers . But before the game started , he met with NBA officials Adam Silver and Dikembe Mutombo for a photo op . At the game in Brooklyn , the couple rubbed shoulders with Beyonce -- Queen Bey to her fans -- and her husband , Jay-Z . The celebrity couple used to be part owners of the Brooklyn basketball team . The Cavaliers won the game , and afterward , James presented the couple with Cleveland Cavaliers basketball jerseys with the names `` Cambridge '' and `` George '' -- for their kid -- on the back . Kate did n't say if this was the kind of thing she 'd wear around the palace . James also gave the couple cupcakes from his hometown and then appeared to joke with William about the size of their feet . He asked William what his shoe size is and the prince quipped back : `` Half the size of yours . '' The princess , who is pregnant with the couple 's second child , has battled acute morning sickness in recent months , and has had to cancel some events . One person had to miss the trip . The couple 's chubby-cheeked toddler , Prince George , stayed home in England . CNN 's Mariano Castillo contributed to this report .
Royal couple meets Jay - Z , Beyonce and receives gift jerseys from LeBron James . They march outside the arena where William and Kate watch an NBA game . It 's the first visit to New York for the Duke and Duchess of Cambridge . Prince William also meets with President Barack Obama .