Sacred, the Chelsea Theatre's festival of live arts, puts the swing back into King's Road. The eclectic ensemble of show-stoppers and crowd-enticers includes the mesmerising Marcella of the Puppini Sisters, with her fusion of sultry performance and '40s couture, and international performance collective Leibniz, who invite audiences to prove their commitment to justice by donating drops of blood to ink a copy of the Universal Declaration of Human Rights. There are also Brazilian dancers taking it to the streets — and, if you're missing the Routemaster, just hop onto Dr Roberts' legendary Magic Bus as it swings into town to celebrate the bank holiday.