Billie Eilish, Mariah Carey and Alicia Keys are among stars taking part in a fund-raising "living room" gig hosted by Sir Elton John to provide entertainment during isolation. Viewers will be asked to support two of the charitable organisations aiding victims and first responders during the pandemic: Feeding America and First Responders Children's Foundation. Other musicians set to take part are Backstreet Boys, Green Day's Billie Joe Armstrong and Tim McGraw.