KATHMANDU, June 9– UNICEF Goodwill Ambassadors Priyanka Chopra Jonas, David Beckham, Katy Perry, Orlando Bloom, Whoopi Goldberg, Angélique Kidjo, and Liam Neeson have joined an extraordinary callby 28 high-profile UNICEF Ambassadors and Supporters demanding that G7 leaders commit to donating doses of Covid-19 vaccines to poorer countries now.