The off-site rehearsals took place at a hotel in western Denmark. Chief Executive Officer Pat Ryan, committee member Anita Defranz and Chicago's Mayor Richard Daley were among those taking part.
The entire Chicago 2016 presentation scene will be announced in the next few days.
Madrid residents push for their city
A large crowd turned out Sunday in Madrid to show their support for that city's bid to host the 2016 Games.
Organizers from Madrid 2016 estimate a half-million people gathered at Cibeles square wearing the colors of Madrid's bid. They held up cards to form a giant 'Olympic hand,' the logo of the city's bid effort.
The human mosaic was followed by a free concert.
Members of the Madrid delegation will begin the trip to Copenhagen Monday.
