Marcus Mumford, Anna Calvi and Hozier are among the artists set to play a fundraising event for Turkey and Syria in London next month.On Saturday, April 15, the famous Royal Albert Hall will host the event, which will raise funds for War Child and the Turkey Mozaik Foundation in response to the deadly recent earthquake.The night will also feature guest appearances by Olivia Colman, Gugu Mbatha-Raw and Omid Djalili, as well as the Turkish and Syrian Solidarity Ensemble.Olivia Colman said of her involvement: ‘Why would I NOT take part? If it was my family, people I knew and loved, I would hope people would do what they could to help me. I don’t know how anyone could read about another human’s suffering and not want to do something.”Marcus Mumford added: “I’ve been a Global Ambassador for War Child UK since 2014 and in that time I’ve been privileged to see their vital work in Central African Republic, Iraq, Gaza and Jordan.