Park Yoo-chun, the 33-year-old South Korean actor and singer finally admitted to having taken drugs, according to police on Monday, Yonhap reported. /VCG Photo

Park made the confession after denying the charges stubbornly for weeks. He reversed his earlier claims of innocence, and admitted to most of the charges including using a banned substance, according to the Gyeonggi Nambu Provincial Police Agency. /VCG Photo

 Park was arrested last week and was accused of purchasing 1.5 grams of methamphetamine earlier this year along with his ex-girlfriend Hwang Ha-na. He was traced and suspected of using banned substance after Hwang was arrested on April 6 on charges of selling methamphetamine and using illegal substances in 2015. /VCG Photo

"I have had a fear about giving myself up. But I have now come to think that I have to admit what I have to admit and apologize for what I have to apologize," Park reportedly told the police on Monday morning. /VCG Photo

Park is also a former member of boy band JYJ and enjoyed considerable popularity among Chinese fans. /VCG Photo