People perform during a musical event on World Music Day in Cairo, Egypt, on June 21, 2018. World Music Day is an annual music celebration that takes place on June 21. (Xinhua/Ahmed Gomaa)

A boy takes selfies with guitars during a musical event on World Music Day in Cairo, Egypt, on June 21, 2018. World Music Day is an annual music celebration that takes place on June 21. (Xinhua/Ahmed Gomaa)

People perform during a musical event on World Music Day in Cairo, Egypt, on June 21, 2018. World Music Day is an annual music celebration that takes place on June 21. (Xinhua/Ahmed Gomaa)

People play guitars during a musical event on World Music Day in Cairo, Egypt, on June 21, 2018. World Music Day is an annual music celebration that takes place on June 21. (Xinhua/Ahmed Gomaa)

Source：  Xinhua.net