COVID-19 has changed the way crowded events are organised. Every year thousands of crowded events are organised around the globe. Majority of the crowded events are religious in nature, with sensitivities and emotions attached. Organisation of crowded events, especially during a pandemic like COVID-19, poses a considerable challenge. To contain the spread of a human to human contagious disease, several restrictions, including wearing face masks, maintain social distancing, and adhering to regular cleaning and sanitisation, are critical. These restrictions stress the need for the event organisers, including the local or central government, to overhaul policies and practices about crowd management during a pandemic. Some crowded events are regular, whereas the others are occasional, which could be spontaneous such as a protest march, a political rally or a funeral procession. Controlling spontaneous crowded events can be quite difficult, especially during a crisis like COVID-19 pandemic. In this article, we shall review several crowded events which have taken place during the ongoing pandemic and investigate their impact and contribution in the spreading or containing COVID-19. We shall also provide a framework for effectively organising crowded events during the ongoing and future pandemics.