Pupils from R A Butler Academy in Saffron Walden performed at the O2 arena (Image: RA Butler Academy)
The Young Voices Choir at R A Butler Academy in Saffron Walden visited the O2 arena and joined 8,000 children to sing in front of a full audience.
They were joined on stage by Heather Small of M People, and watched Anna Phoebe - who they met after the show - playing her violin with the Beat Box Collective.
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The school's deputy head and choir lead Mrs Scott said: "Our children have worked so hard over the past months learning the lyrics and actions to a large repertoire of songs.
"They were an absolute credit to the school singing and dancing with huge enthusiasm and enjoyment.
"It is an unforgettable experience for the children and their parents in the audience."
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