Haylie Duff appears to be on Ashley Tisdale’s side amid sister feud

Hilary Duff‘Lizzie McGuire’ Husband Isn’t the Only Family Member to Find Himself in the Middle of the ‘Lizzie McGuire’ Alum’s Alleged Feud With Another Disney Star Ashley Tisdale.

Internet sleuths have confirmed that Hilary’s sister, Haylie Duffhas chosen a side in the latest Y2K drama taking over the Internet, and it’s not to support her “Material Girls” co-star.

For those who may not be familiar, Ashley Tisdale sparked a social media frenzy in early January 2026 after sharing that she decided to leave her “toxic” mom group in her rearview mirror after realizing the dynamic was unhealthy.

According to Us every weekHaylie expressed her support for Tisdale on Instagram by liking the actor’s joint post with “The Cut,” the site where she shared her personal essay. “LEAVE YOUR TOXIC FRIENDS BEHIND IN 2026, says @ashleytisdalefrench,” the photo’s caption read. “For #ItsBeenAYear, the actress, beauty founder and mother details her abandonment of her moms group, where harassment among women mirrored their children’s playground antics. Read the story of how it all unfolded, in her own words, at the link in bio.”

While Hilary and Haylie have always seemed close, even sharing the screen in the 2006 film “Material Girls” and working together behind the scenes in the film “Lizzie McGuire,” fans have long suspected a rift between the famous sisters. A 2023 Reddit the thread shares more, with fans speculating that part of their fallout stems from Haylie’s alleged support for right-wing ideologies.

According to a report from The explosionTisdale caused a frenzy online after her personal essay on how leaving a “toxic” mom group helped her realize she deserved better from the friends in her life went viral.

In the essay, Tisdale wrote about feeling excluded from her group of friends, which reportedly includes Meghan Trainor, Mandy Moore and Hilary, saying she often found out on social media that they were hanging out without her.

“Another time, at dinner with my mother, I realized where I was sitting with her, which was at the end of the table, away from the rest of the women,” Tisdale continued. “I began to feel excluded from the group, noticing each time that they seemed to exclude me.”

But she didn’t stop there. Tisdale added that she ultimately decided to break up with her group via text message, telling them the dynamic was “too high school for me.”

While a representative for Tisdale’s team denied that her essay was about a specific celebrity, Hilary’s husband, Matthew Koma, directly attacked the “High School Musical” singer in his Instagram Stories, as reported The explosion.

In the photo, the songwriter is seen imitating a pose similar to Tisdale’s. He captioned the image: “When you’re the most obsessed deaf person on Earth, other moms tend to focus on their little ones,” before adding: “A group of moms tell it all through a dad’s eyes.”

Fans were divided over Koma’s decision, with some admitting they lived for the mess, while others accused the singer of constantly attacking women.

Tisdale, who became a mother during the height of the COVID-19 pandemic, sought to encourage readers of her personal essay with advice she learned from motherhood.

“Motherhood has enough challenges without having to wonder if the people around you are on your side,” she shared, reminding her followers that they “deserve” to experience the thrill of being a mother with real supports and loved ones.

“And if you have to wonder if they [do support you]here’s the hard-earned lesson I hope you take to heart: this is not the group for you. Although it seems like they’re having the best time on Instagram,” she concluded.