CASE STUDY WINDY CITY PSA PSA = Public Service Announcement STAY HOME SAVE LIVES Delivered As the United States went into lockdown in March, Havas Chicago crafted a series of COVID-19 public service announcements starring the city’s charismatic mayor Lori Lightfoot to convey the most meaningful message of all – stay at home and save lives. Marianna Ruiz, Group Creative Director of Havas Chicago, tells us more. 36