VOCAL harmony trio The Puppini Sisters have been un-veiled as the headline act at Hartlepool's retro celebration The Diamond Festival this summer.

The girls will be among a host of top-quality acts ap-pearing in the entertainment marquee in front of Hartle-pool's Maritime Experience on Saturday, June 2.

Also confirmed are North-East rockabilly and roots rock combo Sour Mash Trio plus Big Boy Bloater, who recently supported Imelda May on tour.

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The Diamond Festival, a five-day feast of retro fun for all the family in early June, is being organised by Hartlepool Borough Council and its part-ner organisations to celebrate the Queen's 60 years on the throne.

Tickets for the Saturday evening entertainment mar-quee are £15 and are on sale at Hartlepool Tourist Informa-tion Centre, in Church Square, on 01429-890000 or at whatshappeninghartlepool.com