Thom Yorke has been announced as one of the main acts for this year's Big Chill festival. The Radiohead frontman will be performing as a solo artist for his only festival appearance this summer. Massive Attack and MIA will also be playing the three-day festival in Herefordshire, alongside Tinariwen, Metronomy and Andrew Weatherall.

But there was bad news for tickets holders to Glade, the event has been cancelled due to what organisers describe as an "unexpected forced increase in security and police costs as well as a level of advanced ticket sales below expectations". However, anyone who has purchased a full-price ticket for Glade through Ticketline can attend the Big Chill instead.

Glade, which was due to take place in July, was set to feature live performances from Orbital, Simian Mobile Disco and Delphic.

The Big Chill is held at Eastnor Castle Deer Park, Herefordshire, between 5-8 August. The event will also feature Tate Britain's Rude Britannia as part of its varied arts programme. Full lineup details can be found at their website. The Guardian is the official media partner of the Big Chill.