The event began as a Mother's Day walk organized by a group of friends and family. It has since grown to about 12,000 walkers.
The walk raises money for the Comprehensive Breast Health Center at Little Company of Mary Hospital. The 3-mile walk travels through the Beverly and Morgan Park neighborhoods.
Emanuel praised the community for coming together.
When asked if he's excited about taking office next week, Emanuel replied: "I think the whole city's excited to start something new. Hit the reset button and chart a new course and writing a new chapter to bring the type of change that we need to the status quo."
Emanuel was also asked what will be the first thing he will do after becoming mayor. He said there wasn't one thing but several he has planned.
Women at St. Francis of Assisi Church on Roosevelt Road joined women across the Chicago area for "Pin-A-Sister Day." By wearing a pink pin, they pledged their commitment to being screened for breast cancer.
The Pin-A-Sister program began four years ago. The goal is to educate African-American and Hispanic women about the importance of being screened.