Structural characteristics and musical characteristics. The core experience of Spinach March is its structural characteristics, musical characteristics, and cooperative performance, which stimulate the desire for exploration. "I am a Spinach" is originally a dance music popular in France at the end of the 19th century, the "Spinach March", formerly known as "Cancan" or "Cancan". "I Am a Spinach" Singer: Louis Koo Lyricist: Louis Koo Composer: Louis Koo.