It's all part of the city's annual St. Patrick's Day parade, which is taking place on Sunday afternoon.
All of the people marching in the parade are making their way along a route that starts at Varsity Stadium, heads east along Bloor Street, south on Yonge Street and then west along Queen Street.
The route wraps up at Nathan Phillips Square.
Retiring Toronto police Chief Bill Blair is serving as the grand marshal of this year's parade.
Earlier in the day, the chief was among dozens of guests invited to a St. Patrick's Day breakfast, which was also attended by Mayor John Tory, as well as Ray Bassett, the Irish ambassador to Canada, and Charles Flanagan, the Irish minister of foreign affairs.
Tory tweeted several photos from the event, all of which featured the mayor wearing a lime green blazer and a darker green tie.
The mayor tweeted that he had picked up the blazer at Honest Ed's on Saturday.