The COVID-19 pandemic has caused many events around the world to be cancelled or postponed due to a country's government imposed restrictions of large gatherings. Among the most prominent events to be affected were the 2020 Summer Olympics, Expo 2020, UEFA Euro 2020 and Copa América 2020 which have been postponed to 2021, and the Eurovision Song Contest 2020, which was cancelled entirely. A number of events have been modified to remove a live audience or to be purely held over teleconference.