MANILA, Philippines (AP) — The estranged father of singer Charice Pempengco of the hit TV show “Glee” was stabbed to death in her hometown in the Philippines, leading the teen star Tuesday to pull out of a concert in Singapore.

The singer apologised to her fans for having to skip the show scheduled for Wednesday and Thursday so she could travel home to the Philippines.

“I am not going to be there to be part of David Foster and Friends concert,” she said in a post Tuesday on Twitter. “I have to go back to the Philippines as soon as possible to be with my family.”

Her father, 40-year-old construction worker Ricky Pempengco, had been at a small grocery store in San Pedro township south of Manila late Monday when he brushed against a drunk man who became angry and stabbed him with an ice pick in the chest and back, according to the Laguna province police chief, Senior Supt. Gilbert Cruz.

A manhunt has been launched for the suspect, with a 20,000 pesos ($470) award for information leading to his arrest. Cruz said the killing appeared random and there was no indication the suspect and victim had any prior grudges.