GLOBAL singers Jennifer Lopez and H.E.R. will star in a global streaming and broadcast special on May 8 to raise money for COVID-19 vaccines, following last year's "One World - Together at Home" fundraiser in which locked-down stars including Lady Gaga performed from their homes. "VAX LIVE: The Concert to Reunite the World" will be hosted by singer Selena Gomez and also feature the Foo Fighters and Eddie Vedder, according to organiser Global Citizen, an international advocacy group. "This is really an opportunity to call on world leaders to make sure that the 27 million heroic healthcare workers around the…