Portishead have been announced as curators of a new, two-day festival in London next July. I'll Be Your Mirror is organised by our friends at ATP, and will take place at Alexandra Palace on the 23rd and 24th of the month.

The line-up is already shaping up to be an impressive one. On the Saturday, Portishead will be joined by MF Doom, Company Flow, The Books, Beak> and Quietus house band Factory Floor. Things get heavy the next day as Swans, Grinderman, Liars and Anika play. And Beach House. Oh well.

Tickets go on sale this Friday via the ATP website