What an electrifying explosion of joy J'Ouvert is, incandescent with rich colour, fiery passion, and coruscating wit. It's the debut play of Yasmin Joseph, first seen pre-Covid at the brilliant, future-forging fringe venue Theatre 503, then on TV as part of the BBC's recent Lights Up strand, and now, triumphantly, storming the West End stage in Sonia Friedman's Re:Emerge season of new work. It's not a perfect piece, but it displays the kind of fresh talent that makes theatregoing truly exciting....