Passerby Lena Lauschuss prepares to donate Lego pieces for Chinese artist Ai Weiwei in Berlin in October. Sean Gallup/Getty Images hide caption
Ai Weiwei
Visitors look at Ai Weiwei's "Trace" installation — part of the @Large: Ai Weiwei on Alcatraz series — last year on Alcatraz Island in the San Francisco Bay. Justin Sullivan/Getty Images hide caption
Ai Weiwei's original application for a six-month business visa was denied. Miguel Villagran/Getty Images hide caption
Chinese artist and activist Ai Weiwei was denied a six-month visa to the U.K. Johannes Simon/Getty Images hide caption
Chinese dissident artist Ai Weiwei received a new passport four years after authorities confiscated it. Ai Weiwei/via Instagram hide caption
Ai Weiwei's With Wind greets visitors to his exhibit, "@Large," on Alcatraz Island in San Francisco. Jan Sturmann/Courtesy FOR-SITE Foundation hide caption
Chinese artist Ai Weiwei's "Colored Vases" is shown on display in December at the Perez Art Museum Miami. One of the vases in the exhibit was smashed Sunday. Zachary Fagenson/Reuters/Landov hide caption
The video for Chinese artist Ai Weiwei's newly released song starts by re-creating the conditions of his captivity during the 81 days he was held in police detention in 2011, and later dissolves into a dystopian nightmare. Courtesy Ai Weiwei hide caption
Chinese artist Ai Weiwei in June 2012. Ed Jones/AFP/Getty Images hide caption
Outspoken Chinese artist Ai Weiwei arrives to speak to reporters outside his studio in Beijing in June of 2011.
Peter Parks/AFP/Getty Images hide captionAi Weiwei in October 2009. Miguel Villagran/Getty Images hide caption
Ai Weiwei, one of China's most controversial artists, looks on during the 'So Sorry' exhibition opening at 'Haus der Kunst' on October 11, 2009 in Munich. Miguel Villagran/Getty Images hide caption
Ai Weiwei FREDERIC J. BROWN/AFP/Getty Images hide caption