Taipei - Singer Jam Hsiao said two attackers were targeting him when they flung a container of faeces at his driver.
"This is terrible and too much," he told reporters on Tuesday outside his house where the alleged attack by two persons on a motorcycle occurred on Monday.
He said his colleagues had for the past six months received phone threats but stressed: "I have no grudge with anyone or financial problems regarding work... I'm sorry for my colleagues and worry that they and my family will be hurt."
He said he had got into the back of his vehicle on Monday when the motorcyclists approached, tapped the front seat window and asked for autographs.
They then threw the excrement which landed on the driver, who managed to get out and grab hold of one of the attackers.
He was dragged for about 20m before he was kicked and had to let go.
He received medical attention at a hospital and no injuries were reported in media reports.
Hsiao, 26, said he was the real target as the attackers had wanted him to get out of the car. Neighbours had also seen the men surveilling his house for two days, he said.
He said he had reason to believe who the mastermind was but could not disclose the name while police investigations were going on.
But he said: "Let's hope the one who used money to direct this attack gets the biggest punishment."
Hsiao, who shot to fame on the singing show One Million Star in 2007, was recently involved in incidents involving fans.
Last July, a Japanese female fan living in his block rang his doorbell in the early hours to offer him steaming soup. He called the police.
Asked if he suspected her, Hsiao declined to comment.
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