South Korean singer Koo Jun-yup has paid tribute to his late wife Taiwanese actress Barbie Hsu who died earlier this week, saying his "angel went back to heaven". In a post on Instagram, Koo added that he was going through "indescribable grief" and a time of "gut-wrenching pain".

DJ Koo criticized Barbie Hsu’s ex-husband, Wang Xiaofei, accusing him of putting on a show of grief, referencing his widely discussed act of walking in the rain after her passing.

The Taiwanese star was known by her fans as ‘Big S.’ Learn more about her life, career and untimely death here.