Angela Merkel has called on both sides to engage in order to bring peace to Ukraine as she pledged €500 million to help rebuild the war-shattered eastern regions.
She said new sanctions against Russia were not her main consideration, despite Moscow sending aid trucks into Ukraine without permission.
Peace will not be possible until there are better border controls between the countries, the German Chancellor added.
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The Foreign Secretary was unable to rule out the possibility of continuing to pay money into the EU when he spoke to Peston On Sunday.
He told Peston on Sunday: "The country is crying out for leadership from the Prime Minister. We want to know her vision."
All the profits from the sale of each download of the forthcoming single would go to Shooting Star Chase and Together for Short Lives.