Qandeel Baloch, whose real name was Fauzia Azeem, challenged social norms with racy posts on social media has been murdered by her brother in the family home in a so-called “honour killing”.
Muhammed Waseem said he gave her a “tablet” to subdue her before strangling her at the weekend.
“She wasn’t aware I was killing her,” he told journalists at a news conference arranged by police.
“I have no regrets,” he added, criticising her social media posts for bringing “dishonour to the Baloch name”.
Ms Baloch first rose to fame in Pakistan in 2014 after a video of her pouting at the camera went viral.
In March, she made headlines by offering to strip for the Pakistan cricket team if they beat India in a World T20 match.
It was also reported that she would be appearing in the next series of Big Boss – India’s version of Big Brother – and in recent days she had appeared twerking in a music video with singer Aryan Khan.
Many people hailed her scantily-clad selfies but she was also subjected to abuse online as she defied traditional conservative values.
She caused further offence when she posted a video of herself with Mufti Qavi, a Muslim cleric, and claimed they smoked cigarettes and drank soft drinks during daylight hours during the month of Ramadan.
Mufti Qavi was removed from the committee that decides when Ramadan starts and finishes by the government following the allegations.
Multan police chief Akram Azhar said authorities would seek the “maximum punishment” for the killing. Murder in Pakistan carries a potential death penalty and if he is specifically charged with an honour killing, he will be ineligible for a family pardon.
More than 500 people a year are killed in Pakistan in so-called honour killings, usually carried out by members of the victim’s family.
Ms Baloch had received frequent threats in the months leading up to her murder and had posted on Facebook of her intention to leave Pakistan because she feared for her safety.
She said she wanted to change the typical orthodox mindset of people who don’t want to come out of their shells of false beliefs and old practises. It seems a shift this radical is something Pakistan is not ready for.