Anything goes

Beijing residents get a view of Britain's informal performance art, Valerie Osipov reports.

It's called performance art and is a bit hard to define, because it tends to be interdisciplinary and informal. But loosely put, it's a field where people engage in live action to express themselves to audiences through music, dance, poetry, theater, painting and more. It is said to have emerged from a movement against the commercialization of art.

Audiences aren't expected to pay for the performances, some of its practitioners say.