Singer, composer and peace activist Farhad Darya is one of the biggest stars in Afghanistan.

He has been touring the country with his Life is Beautiful concerts, drawing crowds of tens of thousands - even in Taliban strongholds. A women-only show in the north was a sell-out. Apart from one bomb blast at a concert in Herat, the tour has been an enormous success, Darya told the BBC World Service. Afghans, he says, are crying out for change.