This evening, from 6:30pm BST (UK time), a Stand Up For Palestine concert takes place, with Yusuf (Cat Stevens) Islam, rapper Lowkey, and Roger Waters, amongst those taking part. It is being webcast from a secret location, which is a small church in London.

There is no indication of when during the show that Roger will be appearing, if he will have any other musicians with him, or what he will be performing. You can watch the show via the following:

Update: We suspect the webcast will remain available to view on demand for some time. Roger's part of the show saw him doing a speech, before playing Wish You Were Here on acoustic guitar (accompanied by Dave Kilminster, also on acoustic), followed by The Bar which Roger played piano on, with no other accompaniment.