Stephen Chan (born 10 November 1980), better known by his stage name NYCCA or NIKKA (日華, nikka) is a multilingual Hong Kong-Japanese rapper. He raps in Mandarin, Cantonese, English and Japanese.
NYCCA was born in Hong Kong, and moved to Japan when he was ten, later attending college in New York. While in high school, he became immersed in hip-hop and decided to pursue music.
Releasing a self-produced CD in 2005, NYCCA received high praises and gained popularity. His first album was released on March 16, 2006. He has performed throughout Asia as well as the United States.