Representatives of the four cities bidding to host the 2016 Summer Olympics have arrived in the Danish capital, to make their pitches.
Michelle Obama, the US First Lady, was among those who travelled to Copenhagen in support of Chicago's bid, while Brazilian President Luiz Inacio Lula da Silva backed Rio de Janeiro.
Other cities running are Madrid and Tokyo.
But while Obama is leading the charm offensive to bring the Olympic Games to Chicago, some of the city's residents are hoping that another city is chosen.
Sebastian Walker has the story.
