Sistra to Boost British Summer Time Performance with Drinks

By the Editorial Team · Saturday, July 4, 2026

British duo SISTRA, made up of sisters Sasha and Sylvie Briggs, will perform at Hyde Park on July 5 as part of British Summer Time, supporting Duran Duran and preparing with a pre-show Buzzballz cocktail. Their growing popularity, bolstered by their debut album and backing from Amex Unsigned, highlights their rise as independent artists gaining creative control and a large audience.

British duo SISTRA is set to energize their British Summer Time (BST) performance with a pre-show drink as they prepare to take the stage on July 5 at Hyde Park, London. Sisters Sasha and Sylvie Briggs, who make up the act, plan to enjoy a Buzzballz cocktail before performing for an audience of approximately 70,000 attendees. The sisters are scheduled to support Duran Duran during the event.

Sasha and Sylvie shared that a pre-show gin and slimline tonic is their usual choice to boost confidence, with the addition of a Buzzballz cocktail planned for the upcoming set. They emphasized how engaging with the crowd provides them with extra energy ahead of their performance.

SISTRA released their debut album, *She Won’t Let Go*, in May and have since returned to the studio to work on new material. Their rise has been supported by the talent development initiative Amex Unsigned, which has helped bring attention to their independent artistry. The sisters described their position as independent musicians as empowering, allowing them the creative freedom to produce and release music on their own terms.

This article was reported by synthesizing coverage from multiple independent news outlets to present a balanced, unbiased account. Read about our editorial standards. Spotted an error? Let us know.