Unicef’s Celebrity-Backed Open Letter Urges G7 Nations To Donate Covid Vaccines To Poorer Countries Before They Expire Billie Eilish, Whoopi Goldberg and David Beckham are among the dozens of celebrities backing the U.N. children’s agency’s call for G7 nations to make up a shortfall of 190 million vaccines in countries where it is most needed, instead of prioritizing low-risk groups.