U2’s Bono and Edge, Bruce Springsteen and Elton John are among the litany of artists mounting Global Citizen’s new ‘Stand Up For Ukraine’ campaign – billed by the organisation as “the world’s largest social media rally for refugee relief” – sharing messages in support of and solidarity for Ukrainian peoples.It comes ahead of summit being held today (April 9), with Canadian Prime Minister Justin Trudeau co-hosting the main conference alongside European Commission President Ursula Von Der Leyen. According to the campaign’s website, Global Citizen aim to raise billions of dollars to fund “UN agencies that are part of the flash appeal as well as GlobalGiving, which gives money to 30+ grassroots organizations in the [Ukrainian] region”. “Refugees in Ukraine and around the world need our help now,” Springsteen said in his video message, shared to Instagram yesterday (April 8) with the hashtag #StandUpForUkraine.