24-hour Global Citizen concert underway featuring over 60 artists
Over 60 artists performed live across cities including New York, London and Seoul as part of the 24-hour Global Citizen festival concert to raise awareness of climate change, vaccine inequality and famine.
Ed Sheeran, Lizzo and Billy Eilish are among the stars taking part in the event, reports BBC.
The show, believed to be one of the biggest-ever international charity events, was organised by Global Citizen - a charity working to end extreme poverty by 2030.
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The event kicked off on Saturday in Paris, where Elton John performed in front of the Eiffel Tower.
He took to the stage following a pre-recorded performance by the K-pop band BTS.
Tens of thousands of people are expected to attend, while millions are likely to tune in to the broadcast.
"Across six continents, artists will help rally citizens in demanding that governments, major corporations and philanthropists work together to defend the planet and defeat poverty," Global Citizen said in a statement.
It called on international governments to plant one billion trees, deliver one billion vaccines to the poorest countries and donate meals for 41 million people on the brink of famine.
Jennifer Lopez was among those who performed in New York, where Billie Eilish and Coldplay are scheduled to play.
Earlier the Duke and Duchess of Sussex, Prince Harry and Meghan Markle, took to the stage calling for access to Covid-19 vaccines to be treated "as a basic human right."
"The way you're born should not dictate your ability to survive," the Duke of Sussex told crowds in the city's Central Park.
They were followed by performances from singer Alessia Cara and pop veteran Cyndi Lauper.
Ed Sheeran performed in Paris alongside the Black Eyed Peas and Stormzy, while Stevie Wonder will play in Los Angeles.
There will also be pre-recorded performances from a huge number of stars, including Green Day, Kylie Minogue and Andrea Bocelli.
Funding announcements have poured in between sets.
In a recorded message, USAID Administrator Samantha Power announced that the US would contribute more than $295 million "to stave off famine and extreme hunger, confront gender-based violence and address the urgent humanitarian needs the Covid-19 pandemic is leaving in its wake."
French President Emmanuel Macron has also pledged to double the number of coronavirus vaccines his country will send to poorer nations.
Meanwhile, a host of international companies like Lego, Cisco and Verizon have promised charitable donations.
World Health Organisation (WHO) Head Dr Tedros Adhanom Ghebreyesus backed Saturday's concerts, calling on the leaders of the developed world to unite and bring an end to vaccine inequality.
"We now face a two-track pandemic of haves and have-nots. We cannot disregard this gross inequity or become complacent," he said.
Those attending the concerts are required to produce either proof of vaccination or a negative Covid test.
Tickets to the shows were distributed free of charge to randomly selected people who signed up for the Global Citizen app and shared its petitions on social media.
