A fan of South Korean girl band Girls' Generation wears a traditional hat with a South Korean flag during a Kpop festival in Hanoi

A fan of South Korean girl band Girls’ Generation wears a traditional hat with a South Korean flag during a Kpop festival in Hanoi

A fan of South Korean girl band Girls' Generation wears a traditional conical 'non' hat with a South Korean national flag during a Kpop festival in Hanoi November 29, 2012. 17 music bands from South Korea gathered in Hanoi on Thursday as part of the 20th anniversary celebrations of the establishment of diplomatic relations between Vietnam and South Korea. REUTERS/Kham (VIETNAM - Tags: ENTERTAINMENT POLITICS) - RTR3B1BT

March 30, 2017 1:40 PM (UTC+8)