Marina Abramović is the most celebrated performance artist in the world. Over a career spanning four decades she has pioneered performance as an art form and accumulated a devoted following that includes Jay-Z and Lady Gaga.Using her body as both subject and object, Abramović explores notions of nothingness and time, and draws in the audience as part of her performance. At her 2010 exhibition, ‘The Artist is Present’, at New York’s MOMA visitors were invited to sit silently opposite her and gaze into her eyes for an unspecified amount of time. Every day people broke down in tears.Her recently finished exhibition ‘512 Hours’ featured featured only herself, the empty gallery, a few props, and the audience who both literally and metaphorically left their baggage at the gate: bags, phones, iPads etc were left in lockers before entry. Warned only to expect the unexpected, visitors were invited to give testimony to their experiences on video, and many have spoken of their overwhelming sense of presentness and gratitude. After the exhibition closed, Abramović came to our stage to discuss her recent experience in London and why, rejecting the materiality and glitz of so much contemporary art, she believes that in the 21st century art will be made not out of objects but out of energy.