Singers in Maldon are taking part in a massive sing, joined by celebrities, voice coaches and professional singers.
Maldon BIG Sing group are joining forces with 350 people from 20 other BIG Sing choirs around the country and will be accompanied by the Voice 2013 runner up, Leah McFall.
They will spend a day being tutored by professionals such as Priscilla Jones-Campbell, voice coach to JLS and XFactor contestants and Adetoun Rattenbury, recently returned from a world tour with Ellie Goulding.
In the evening choir members will be performing in a BIG FEST concert at the Civic Theatre, Chelmsford.
Tickets to the concert, on May 23, are available at big-sing.com
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