Chao Kuo-Jung (; born August 28, 1992 in Taiwan), better known in Japan as Youko (ヨウコ ) is a member of the latest Hello! Project group Ice Creamusume. She was announced as a winner of the Taiwan Hello! Project New Star auditions on September 20, 2008 along with the other members of Ice Creamusume.
Youko was announced as the winner of the Taiwan Hello! Project New Star auditions in the Fall of 2008.