MELTDOWN: Yoko Ono Plastic Ono Band

Curator Yoko Ono opens this year's Meltdown festival with a performance from her Plastic Ono Band. The Band reactivated in 2009 with a rotating cast of big names alongside Ono and Sean Lennon: a 2010 line-up included Eric Clapton and Klaus Voorman, with special guest appearances from Lady Gaga, Paul Simon, Bette Midler and members of Sonic Youth. Who knows who'll turn up this time?