The design team responsible for the celebrated Beijing National Stadium, which was built for the 2008 Olympic Games and won the prestigious RIBA Lubetkin Prize, will come together again in London in 2012 in a special development of the Serpentine's acclaimed annual commission. Open from June to October 2012, the Pavilion will be presented as part of the London 2012 Festival, the culmination of the Cultural Olympiad. The Pavilion will be Herzog & de Meuron and Ai Weiwei's first collaborative built structure in the UK. www.serpentinegallery.org