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TOKYO, JAPAN - MAY 31: Piano player Nobuyuki Tsujii performs live during the Sayonara National Stadium event at National Stadium on May 31, 2014 in Tokyo, Japan. The National Stadium in Tokyo, originally built for 1964 Summer Olympics will be demolished to make way for a 80,000-seat stadium which will serve as the main venue of the 2020 Olympics. (Photo by Koji Watanabe/Getty Images)

TOKYO, JAPAN - MAY 31: Piano player Nobuyuki Tsujii performs live during the Sayonara National Stadium event at National Stadium on May 31, 2014 in Tokyo, Japan. The National Stadium in Tokyo, originally built for 1964 Summer Olympics will be demolished to make way for a 80,000-seat stadium which will serve as the main venue of the 2020 Olympics. (Photo by Koji Watanabe/Getty Images)