Dancers rehearse for Glastonbury
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Glastonbury: Pirouetting on the Pyramid stage

When it began 44 years ago, tickets cost a pound and included free glasses of milk from the farm.

Now, the Glastonbury Festival is the biggest music event of its kind in the world.

Canadian rockers Arcade Fire top the bill when the lights go on on the main stage on Friday.

However, as the BBC's Lizo Mzimba explains, the Pyramid stage will also be playing host to some more unusual Glastonbury acts...

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