Barbie Hsu, better known as "Da S" which means "Big S," caught the flu when she visited Japan with her family during the Lunar New Year, according to her sister.

"Our whole family came to Japan for a trip, and my dearest and most kindhearted sister Barbie Hsu died of influenza-induced pneumonia and unfortunately left us," Barbie’s sister

Popularly known as ‘Big S’, Barbie Hsu began her career in 1994 in the pop duo SOS before starring in a number of hit films and TV series.