A spokesman for Ken Livingstone said: "Boris Johnson lost his temper because he lost the debate - he talked about cable cars, not cutting fares and the squeeze on Londoners."
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The announcement was hailed as a "momentous step" that will help families facing financial stress as they come to terms with their loss.
Pop Idol's Michelle McManus has joined 10 choirs to record a charity single that they hope will make Christmas Number One.
The decision was met with outrage and anger by UK cities which were on the shortlist for the prestigious award.