(CNN) As concerts and festivals continue to get canceled because of coronavirus, more and more events are happening via digital platforms.

Enter One World: Together At Home , described on its website as a "global broadcast & digital special to support frontline healthcare workers and the WHO."

The event -- which will feature dozens of celebrities and musicians -- will be hosted by Jimmy Fallon, Jimmy Kimmel and Stephen Colbert.

Here's what else you should know about the event, taking place on Saturday.

What is One World?

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