Fact Check: Did Justin Bieber accuse Mariah Carey of killing her mother and sister?

WASHINGTON, DC: An X post has sparked online buzz after sharing a screenshot that appears to show Justin Bieber commenting on Mariah Carey’s Instagram with shocking allegations involving the Illuminati, murder, and cannibalism.

The post quickly drew attention as it linked the claim to broader celebrity conspiracy theories circulating online. While the rumor also references the reported deaths of Carey’s mother, Patricia, and sister, Alison, in August 2024, the authenticity of the screenshot remains unverified.

So, what’s the truth behind the viral claim, and where did the story actually begin?

Claim: Justin Bieber accused Mariah Carey of killing her mother and sister

The rumor was shared by X user @TruthFairy131, who posted a screenshot allegedly showing Bieber commenting on a post by Carey. The post claimed Bieber wrote, "You killed your mom and sis for the illuminati and literally ate your own mom?"

The rumor gained traction as Carey’s relationship with her mother, Patricia Carey, has often been described as strained and complicated.

In her memoir 'The Meaning of Mariah Carey,' she described their bond as a “prickly rope” of pride, jealousy, and disappointment. Despite years of tension, reports suggest the two had begun reconciling in the period leading up to Patricia’s death.

Her relationship with her sister, Alison Carey, was even more troubled. Mariah has described it as “broken” and “dangerous,” alleging in her memoir that Alison once drugged her and attempted to “pimp her out.” Alison later filed a lawsuit against Mariah over these claims.

Notably, Carey’s family dynamics have long been marked by conflict, public allegations, and legal disputes, many of which she addressed in her memoir.

Fact Check: False, no evidence to back the viral claim

No, Justin Bieber did not comment on Mariah Carey’s post, and there is no evidence that he made the alleged accusations. The viral screenshot circulating online is fabricated, and no such comment appears under the original post by the 'Obsessed' singer.

The misleading claim appears to have originated from an X post by Jay Anderson (@TheProjectUnity), where it quickly gained traction and crossed one million views. From there, the false narrative spread widely as users reshared the same unverified screenshot.

Despite the lack of evidence, some users believed the claim and reacted to it online. As of now, Carey has not addressed the viral rumor, while Bieber has been drawn into the controversy without basis.

In one widely shared X post, a Community Note clarified, “This screenshot is fabricated and originated from a website known for publishing celebrity hoaxes. No record of this comment exists on Mariah Carey’s verified Instagram profile, and major music publications have not reported any such interaction between the artists.”