Hee Sung 'Jamie' Park: 7 Key Facts About Post Malone's Private Ex-Fiancée And Their Custody Battle

The identity of Hee Sung ‘Jamie’ Park, the highly private ex-fiancée and mother of rapper Post Malone’s daughter, was one of the most closely guarded secrets in the music world for years. As of late 2025, her name has become public knowledge, not through a celebratory announcement, but through the filing of court documents related to a high-stakes custody battle with the "Sunflower" singer. The revelation has brought a new wave of intense public scrutiny to the woman who was once the quiet anchor in the life of global superstar Austin Post.

This article provides the most current and fresh information available as of December 2025, detailing the timeline of their relationship, the circumstances surrounding their recent split, and the legal proceedings that ultimately forced her identity into the public domain. The story of Hee Sung Park is a rare look into the intense measures celebrities take to protect their loved ones, and the moments when that privacy is broken by legal necessity.

Hee Sung ‘Jamie’ Park: The Private Profile

For years, Post Malone, born Austin Post, referred to his partner only as his “fiancée” and the “mother of his baby,” successfully shielding her from the spotlight. It wasn't until the filing of legal documents in the Los Angeles Superior Court in April 2025 that her full name, Hee Sung "Jamie" Park, was officially confirmed by major news outlets. Due to her fiercely private nature, a complete public biography remains largely unavailable, but the essential facts of her life and relationship with the rapper have been established.

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• Full Name: Hee Sung "Jamie" Park
• Known For: Ex-fiancée of rapper Post Malone (Austin Post) and mother of his daughter.
• Relationship Timeline: Began dating Post Malone in a highly private relationship for several years before 2021.
• Engagement: Got engaged to Post Malone in 2021.
• Child’s Birth: Welcomed a daughter with Post Malone in May 2022.
• Relationship Status: Seemingly broke up with Post Malone in 2025.
• Custody Filing: Filed for primary physical custody of their daughter in Los Angeles Superior Court in April 2025.
• Legal Settlement: Reached a private, out-of-court settlement regarding child custody, visitation, and support in late 2025.
• Profession/Career: Her professional career outside of her relationship with Post Malone has not been publicly disclosed.

The Secret Revealed: Why Hee Sung Park’s Identity Became Public

The decision by Post Malone and Hee Sung Park to keep their relationship and family life out of the public eye was a deliberate and successful strategy for years. Post Malone frequently spoke about his desire to protect his fiancée and daughter from the pressures and negativity of celebrity life. He even announced the birth of his daughter and his engagement in a remarkably low-key manner during a radio interview, emphasizing his commitment to privacy.

The long-standing wall of celebrity privacy, however, was breached by a legal necessity: the custody battle. When a couple with a child separates and cannot agree on custody arrangements, one party must file a petition with the court. In April 2025, Hee Sung Park initiated this process in Los Angeles, requesting primary physical custody of their daughter and joint legal custody. Court documents, which are public records, contained her full name, Hee Sung "Jamie" Park, finally revealing the identity of the mysterious partner.

The filing instantly became a global news story, shifting the narrative from a private break-up to a public legal conflict. The revelation underscored a critical aspect of celebrity life: while stars can control their public narrative, the legal system often demands transparency, making a truly private life virtually impossible when children are involved.

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The High-Profile Custody Battle and Its Resolution

The custody battle between Post Malone (Austin Post) and Hee Sung Park quickly became one of the most talked-about celebrity legal disputes of 2025. Hee Sung Park's initial filing sought to establish a formal arrangement for their young daughter, who was approximately three years old at the time. The documents requested primary physical custody, which would mean the child would primarily reside with her, and joint legal custody, allowing both parents to share decision-making responsibilities regarding the child's health, education, and welfare.

The proceedings were particularly sensitive due to the significant financial implications, as Post Malone is reported to have a vast fortune. Child support and visitation rights for a high-net-worth individual like the rapper are often complex and highly contested.

A Private Peace Pact

Fortunately for both parties, the contentious public legal battle was short-lived. In late 2025, news broke that Hee Sung Park and Post Malone had reached a comprehensive and private settlement. The agreement finalized the terms for custody, visitation schedules, and child support, effectively ending the months-long dispute. The details of the settlement remain confidential, which is a common practice in celebrity cases designed to protect the privacy of the child. This resolution allowed both parents to move forward with co-parenting their daughter outside of the glare of the Los Angeles Superior Court.

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The Impact of the Identity Reveal on Celebrity Privacy

The case of Hee Sung 'Jamie' Park serves as a modern cautionary tale about the limits of celebrity privacy in the digital age. Post Malone's efforts to shield his family were meticulous; he went years without revealing her name, nationality, or any personal details. This level of secrecy is rare for a star of his magnitude, highlighting his dedication to a normal family life.

The fact that a routine legal filing—a standard procedure for any separating couple with children—was the trigger for the public reveal has sparked discussions about celebrity privacy laws. For Hee Sung Park, who has no public career and clearly values her anonymity, the exposure was an involuntary consequence of seeking a formal, legally binding arrangement for her child’s care. Her story is now inextricably linked to the rapper, but the minimal public information available on her career or background suggests she is determined to maintain her private life despite the recent media storm.

Fans and media outlets continue to respect the private nature of her background, focusing primarily on the resolved custody case. As of December 2025, Hee Sung Park remains a figure defined by her relationship with Post Malone, the mother of his child, and a symbol of the challenges faced by partners of global superstars in maintaining a life away from the relentless public eye.