The UK's longest-running student a cappella group are back for their tenth year at the Fringe. The fourteen-strong ensemble is renowned for their creative arrangements and slick choreography, performing everything from pop to R'n'B to old-school classics. Previous years have seen them perform on BBC One's Pitch Battle and reach the UK Finals of the 2018 International Championship of Collegiate A Cappella, and the group shows no signs of slowing down. With a stylish set list and inhuman beatboxing, this show will charm anyone from die-hard a cappella aficionados to the most sceptical. ***** (BroadwayBaby.com).