Boy George, Ricky Gervais, Slipknot‘s Corey Taylor and a supergroup led by Jane’s Addiction‘s Dave Navarro, have been added to the line-up of the special charity livestream event which will honour David Bowie‘s life and career this weekend.A Bowie Celebration: Just For One Day! will be streamed globally on Friday (January 8) to mark what would have been the late artist’s 74th birthday.