The "Lose You to Love Me" singer shared a message on her Instagram Story March 24 after learning about the immense criticism the model has been receiving.
"Hailey Bieber reached out to me and let me know that she has been receiving death threats and such hateful negativity," Selena, who has also followed Hailey on Instagram, wrote. "This isn't what I stand for. No one should have to experience hate or bullying."
"I've always advocated for kindness," she noted, "and really want this all to stop."
Selena's message comes one month after she took to social media to address claims that Hailey and pal Kylie Jenner threw shade at her, calling the speculation "unnecessary" in a Feb. 22 TikTok comment. Since that time, Hailey—who is married to Selena's ex Justin Bieber—has received a flood of negative comments online, which is why Selena is speaking up in her defense.
The Grammy nominee and the Rhode Skin founder previously put the feud rumors to rest in late 2022 when they posed for a photo together at the Academy Museum Gala.
"They were at the same event and were asked to take a photo together," a source close to Selena told E! News in October. "They agreed and decided to clear up the rumors once and for all. They wanted to show that there's really no hate between them and that they are both in a good place. It was a moment and an opportunity to put all of the noise behind them and they took it."
Hailey also addressed the criticism she receives about the timeline of her and Justin's relationship in a September interview on Call Her Daddy. (Hailey and Justin tied the knot in Sept. 2018, months after he reunited and later split with Selena.)
"A lot of the hate and the perpetuation comes from like, 'Oh, you stole [Justin],'" she said. "And I guess maybe that just comes from the fact that they wished he had ended up with somebody else. And that's fine. You can wish that all you want but that's just not the case."'
To see a complete timeline of Selena and Hailey's history, keep scrolling.