One Direction's Liam Payne said: "The pictures I have seen of little children in between the ruins made my heart break.
"All of us in the band are shocked by how many people need help, so we're asking the public to continue to be as generous as they possibly can."
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Orlando Bloom has visited children whose school was destroyed by shellfire during the conflict in Ukraine.
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Daddy Day Care star Eddie Murphy is celebrating the birth of his ninth child.