Paul McCartney, Eddie Vedder and Elton John have enlisted for an April 18 benefit being carried multiple television networks,YouTube, Twitter and Facebook. One World: Together At Home will raise money for the Covid-19 Solidarity Response Fund of the World Health Organization. The event will also include performances by Stevie Wonder, Alanis Morissette, and Green Day's Billie Joe Armstrong, and will be hosted by Jimmy Fallon, Stephen Colbert and Jimmy Kimmell.