don't know who 31-year-old chinese pianist lang lang is, you most definitely is after sunday's grammy wawrdzhe is playing alongside metallica, one of the heaviest heavy metal bands on the planet. >> i'm a classical pianist. i thought this was going to be a cool coloration. listening to the music one, the sound, performing and listening at least 30 times a day. >> lang lang has played to sold-out concerts in the world is like the royal albert hall in london. but his crowning achievement was playing before the 2008 beijing olympics. >> i thought that was kind of like dreaming because it just blows my mind. >> growing up in northern china, lang lang's love of music and the piano began at two and a half whether he was watching cartoons. >> i was a big cartoon fan and i listened to the music from tom and jerry. the chinese one. and i start to, hmm, listening to music by ear and start playing by ear. so somehow i start to get interested in music. >> his passionate style has inspired millions of children in china and around the world to take up classical music. >> classical music has changed my lif