LONDON, ENGLAND - FEBRUARY 12:  German-Japanese concert pianist Alice Sara Ott (hands detail) demonstrates using her Rubik's Cube to warm up her fingers after rehearsing on stage piano works by composer Robert Schumann, Franz Schubert and Modest Petrovich Mussorgsky's "Pictures at an Exhibition" before performance as part of the International Piano Series 2012-13 at the Royal Festival Hall on February 12, 2013 in London, England.  (Photo by Amy T. Zielinski/Redferns via Getty Images)