Animal Collective’s Panda Bear and The Jon Spencer Blues Explosion have joined the lineup for All Tomorrow’s Parties’ flagship UK festival. As previously reported, once reclusive Neutral Milk Hotel frontman Jeff Mangum will headline and curate the festival, which will be held December 2-4 at Minehead, UK’s Butlin’s Holiday Centre. Other confirmed acts include: Fleet Foxes, Joanna Newsom, Low, The Fall, Boredoms, Thurston Moore, Superchunk, The Olivia Tremor Control and Sun Ra Arkestra. Panda Bear will play alongside Sonic Boom (Pete Kember) of Spectrum/Spacemen 3, who is also known for his production work for MGMT.