Crowds of people are expected to gather later in the day for the Chicago Pride Parade.
It's set to start at noon on Sunday.
Organizers say there are 250 registered entries for the parade. They include public officials, Chicago sports teams, churches and businesses.
In years past the event has drawn up to 400,000 people.
The grand marshal is country music star Chely Wright, who recently came out publicly as a lesbian. Her memoir, "Like Me," and new album, "Lifted Off the Ground," were recently released.