Guest director, Michael Rosen, will be in conversation with journalist Polly Toynbee about his role in this year's event.
It's also expected that the entire programme of events will be revealed in advance for the first time.
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Saturday morning's weather for the east of the region
Saturday morning's weather for the west of the region
Godfrey gull is recovering after being rescued by the fire brigade when his leg and wing became trapped in netting.