The Most Famous Celebrity Sister Feuds In Pop Culture History

Sisters may seem sweet, but they can fight like animals. Celebrity sisters are no different, with feuds sometimes lasting decades — as was the case for old Hollywood legends Joan Fontaine and Olivia de Havilland. Some of these fights seem to stem from legitimate reasons, while others are from misunderstandings or silly disagreements. But regardless of how their falling out came to be, we've seen many celebrity sister feuds play out in real time throughout pop culture history.

It's not uncommon to see some famous sisters posing together and looking stunning on the red carpet one year, only to go fully no-contact the next. Hilary Duff and her older sister, Haylie Duff, for example, have been fighting for so long that Hilary lamented about their lost relationship in a song on her 2026 album, "Luck...or something." Kim Kardashian and her older sister, Kourtney Kardashian Barker, played out their various fights on reality TV. Who could forget their famous slapping fight in a March 2020 episode of "Keeping Up With the Kardashians"?

Siblings fighting is nothing new, and while we feel bad for sisters who can't get along, we're also secretly relieved — we aren't the only ones who fight and make up (mostly) with our sisters! These celebs have all been there, too, with some feuds still ongoing as of 2026. Find some of the most legendary feuds between celebrities and their gorgeous sisters below.

Britney Spears' relationship with her family, including her younger sister, Jamie Lynn Spears, is complicated. She has called out her sister, her dad (Jamie Spears), and her mom (Lynne Spears) for their treatment of her during her 13-year conservatorship, which ended in November 2021. "Honestly, my family embarrassed me and hurt me deeply," Britney wrote on Instagram in December 2021. Jamie Lynn has denied having anything to do with putting Britney in the conservatorship. She told People in January 2022, "My sister was going through a hard time, I was still a child..." 

In her 2022 memoir, "Things I Should Have Said," Jamie Lynn wrote that her sister was "erratic," "paranoid," and "spiraling," which she discussed in an ABC News interview. However, in the same interview, Jamie Lynn emphasized she's always been on Britney's side. "I've only ever loved and supported her and done what's right by her," she asserted. But that's not how Britney sees it. In her 2023 memoir, "The Woman in Me, Britney accused Jamie Lynn of trying to make money off her experiences. "As I was fighting the conservatorship and receiving a lot of press attention, she was writing a book capitalizing on it," Britney wrote (per Today), adding, "I was really let down." 

Despite everything that happened, Britney also wrote in her memoir that she is "working to feel more compassion than anger toward [Jamie Lynn]." Jamie Lynn seems to feel the same, calling Britney "a good big sister" in a November 2023 appearance on "I'm a Celebrity...Get Me Out of Here." Jamie Lynn added about Britney, "Me and her will throw down. I've learned to stop talking about it publicly, but you know, families fight. Listen, we just do it better than most."

One of the most famous celebrity sister feuds was between actors Olivia de Havilland and Joan Fontaine. Born in 1916 and 1917, respectively, de Havilland was known for "Gone with the Wind" and "The Adventures of Robin Hood," and Fontaine for "Rebecca" and "Suspicion." Despite (or maybe because of) their similarities, these sisters fought often — starting as children. "From birth, we were not encouraged by our parents or nurses to be anything but rivals," Fontaine wrote in her 1978 memoir, "No Bed of Roses" (via Vanity Fair). The sisters were sometimes violent, with Fontaine claiming that de Havilland once "threw me down on the poolside, flagstone border, jumped on top of me and fractured my collarbone." However, in de Havilland's 1962 memoir, "Every Frenchman Has One," she argued that Fontaine started it by grabbing her ankle.

The actors' childhoods seem filled with she-said-she-said accusations that left a permanent bitterness. In a 1978 interview with People, Fontaine noted, "I regret that I remember not one act of kindness from Olivia all through my childhood." When addressing their relationship at the time, Fontaine added, "I don't see her at all, and I don't intend to." Even after childhood, de Havilland and Fontaine found that their competing acting careers only added fuel to the fire. The sisters were rivals again when they were both nominated for Best Actress at the 1942 Oscars. Fontaine took home the statue that night, but de Havilland had her revenge later in life, eventually winning two Oscars compared to Fontaine's one. 

Three years after Fontaine's death in 2013, de Havilland told People that her younger sister had "an astigmatism in her perception of both people and situations." She added that this caused "great distress" and "brought about an estrangement between us which did not change in the last years of her life."

Hilary Duff's song, "We Don't Talk," from her February 2026 album, "Luck...or something," reveals that she doesn't communicate at all with her older sister, Haylie Duff. "It's definitely about my sister. And just absolutely the most lonely part of my existence is not having my sister in my life at the moment," Hilary told CBS Mornings in February 2026 about the track, calling herself "a person that exists in the world without my other half." The same month, Hilary told Glamour, "Just because you're born into a family doesn't mean that it always stays together. You can only control your side and your street..."

It's hard to pinpoint exactly what caused the feud, but there have been hints that things haven't been right between the sisters for a while. Hilary and Haylie haven't been photographed together since 2019, and internet sleuths have noticed that Haylie hasn't "liked" any of her sister's social media posts since January 2021. Fans speculated on Reddit in 2022 that the estrangement was caused by differing political opinions, with one person writing, "The common theory I have seen is the rift is due to Haylie becoming more right-wing and moving [to] Texas."

However, an insider told the "Deux/U with Jordy Cray" podcast in November 2022 that the sisters allegedly stopped speaking because Hilary's husband, Matthew Koma, and Haylie's then-fiancé, Matthew Rosenberg, reportedly didn't get along. Haylie hasn't spoken about the feud, but she did "like" a post promoting Ashley Tisdale's January 2026 essay for The Cut, where she slammed her "toxic mom group" (which included Hilary Duff and her wild-child daughter Banks), and later publicly hung out with Tisdale and her kids.

Kim Kardashian and her older sister, Kourtney Kardashian Barker, have disagreed a lot over the years. One iconic spat began after Kourtney married Travis Barker, when, in a 2023 episode of "The Kardashians," Kourtney accused Kim of using the wedding as a "business opportunity" to launch her partnership with Dolce & Gabbana (the same designer behind her custom-made wedding dress). "I don't think that she feels [bad]," Kourtney said on the reality show (via The Independent). "It comes from an old thing of us being 18 months apart and just having a more competitive nature as sisters."

Though there were certainly hurt feelings, the sisters finally worked out their differences years later. In a February 2025 confessional on "The Kardashians," Kourtney said, "We're sisters, and we love each other. Life is short. So, it's time to move on" (via E! News). In the same episode, Kim said that fighting over fashion was "what we were doing in elementary school."

Anyone who has a sister won't be surprised to hear that these two fought long before cameras were involved. In a February 2025 episode of "The Kardashians," Kim told the story of a time she stole her sister's Levi's jeans in sixth grade. Kourtney found out and interrupted Kim's class to take back what was hers. "And then [Kourtney] comes in with the lamest shorts and makes me change into them," Kim said in the episode (via Collider). "I was so embarrassed, and I have never gotten over what happened to me in sixth grade." Some things never change.