Namewee, whose real name is Wee Meng Chee, handed himself over to police on Wednesday after he was named a "person of interest" in the probe into the death of Iris Hsieh, also known as Hsieh Yu-hsin, or "nurse goddess" to fans.
The 31-year-old influencer was found dead on Oct. 22 in a bathtub at a high-end hotel in the Malaysian capital.
The probe was reclassified from a "sudden death report" to a murder case, with police saying they wanted to question Namewee, believed to have been the last person in Hsieh's company.