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Prince Charles - The Prince's Trust founder - in the royal box with Will Young and Jamelia.

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Prince Charles greets Geri Halliwell with a kiss on both cheeks. The former Spice Girl said the prince told her he was pleased to see her in her "fuller" figure.

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Will Young opened this year's Party in the Park in London to thousands of his jubilant fans.

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Duncan James from Blue doubled up as performer and presenter at the show.

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Andrea Corr during the Corrs' performance.

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Anastacia made a welcome return to the Party in the Park stage.

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Teen band Busted gave the 100,000-strong crowd a rousing set.

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The audience was made up of people of all ages.

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Mutya from girl group the Sugababes takes in the party atmosphere.

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McFly having fun on a Sunday afternoon.

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Rapper Sean Paul pulled out all the stops during his spot on stage.

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Canadian singer Nelly Furtado took the opportunity to meet her fans.

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Avril Lavigne gets the crowd to sing along.