This 23-year-old pianist in Shanghai has quite a talent once his socks, or one sock, rather, is removed. Liu Wei’s arms were amputated after a childhood accident so he plays the piano with his toes. Liu was thrust into the limelight in early August when he performed on “China’s Got Talent,” the Chinese version of the TV show that helped make Britain’s Susan Boyle a singing star. “Whatever other people do with their hands, I do with my feet. It’s just that,” says Liu. He’s a tall, slender man who wears glasses and received a standing ovation from a teary-eyed audience after his performance. Just prior to his performance he removed his shoes and right sock, carefully using his toes to place the sock in his right shoe. He keeps his left sock on, wipes down some of the keys with a tissue, rest his heels on a red velvet platform in front of the keyboard, and begins to play, flawlessly.