“I am very sorry to all my fans from Singapore,” she wrote on Twitter. “I am not going to be there to be part of David Foster and Friends concert. I have to go back to the Philippines as soon as possible to be with my family. I hope you all understand. I love you all and I will see you next year.”

According to reports, her 40-year-old father, construction worker Ricky Pempengco, had been at a grocery store in San Pedro township near Manila when he came in contact with a drunk man. After he brushed up against the man, the man stabbed him with an ice pick in the chest and back. Police in the area report that a manhunt is currently under way and a reward is being offered for information leading to an arrest. Pempengco doesn’t appear to have been targeted, according to authorities.

In another message to her fans, written in Filipino, the singer opened up about her relationship with her estranged dad saying, “We had a really great relationship” and “He’s still my Dad, after all.” Local reports suggest that Pempengco and Charice’s mother split when she and her brother were small. “I loved him and I will still love him,” she added about her father.

Charice was first introduced to American audiences when she appeared on “The Oprah Winfrey Show” in 2008, following that up with an appearance last year. Since then, she has released several songs (“Pyramid,” “One Day”) and appeared on “Glee.”

Her second studio album, Infinity, dropped earlier this year.