"The Hills" premiered in 2006 and followed stars like Lauren Conrad, Heidi Montag, and Brody Jenner.
The MTV series came to an end in 2010, but the reboot, "The Hills: New Beginnings" aired in 2019.
The stars have gone on to different careers in the entertainment industry.
Lauren Conrad was the show's star for most of its run.
After rising to fame on the MTV reality show "Laguna Beach: The Real Orange County," Conrad got her own spin-off series, "The Hills."
The show detailed the fashion-focused star's platonic and romantic relationships until she left during season five.
Conrad is now a mom and an author.
After leaving "The Hills," Conrad married William Tell in 2014, and they now have two sons together.
Lauren has her own clothing collection with Kohl's and has published both nonfiction and fiction books, like "LA Candy" and "The Fame Game."
Audrina Patridge was known for dating a costar with two first names.
For most of "The Hills," Patridge was known as Conrad's closest confidante — they lived together and supported each other.
Patridge was also famous for dating singer Ryan Cabrera for a little while before entering a tumultuous on-again, off-again relationship with costar Justin Brescia, also known as Justin Bobby.
She's now a mom and was on the series' reboot.
Once "The Hills" ended, Patridge appeared on ABC's "Dancing With The Stars," acted in movies like "Sorority Row" (2009), and temporarily hosted the NBC travel show "1st Look."
In 2011, she starred on her own VH1 reality show called "Audrina," which lasted for one season.
Patridge married BMX rider Corey Bohan in November 2016 and gave birth to their daughter the same year.
In 2017, she filed for a divorce and a temporary restraining order against Bohan due to an alleged domestic-violence incident, according to People. She was granted full custody of their daughter later that year.
Patridge was on MTV's "The Hills: New Beginnings," a reboot of the original series that premiered in 2019. The show ran for two seasons.
She recently published a memoir, "Choices: To the Hills and Back Again."
Heidi Montag was once Lauren's best friend but became an enemy.
At the start of "The Hills," Montag was known as Conrad's best friend but became somewhat of a rival when she ended their friendship to be with Spencer Pratt.
As the show went on, much of Montag's story revolved around her plastic surgery and her relationship with Pratt.
Montag has since appeared on several reality-TV shows.
Years later, Montag is still with Pratt — the two are married with a son, and they're often referred to as Speidi.
Montag has also appeared on reality shows like ITV's "I'm a Celebrity… Get Me Out Of Here," CBS' "Celebrity Big Brother," ABC's "Celebrity Wife Swap," and WE tv's "Marriage Boot Camp: Reality Stars."
She also acted in projects like "Just Go With It" (2011), alongside Adam Sandler and Jennifer Aniston, and "Assassin 33 A.D." (2020).
Montag joined the cast of "The Hills: New Beginnings" in 2019.
Montag and Pratt recently welcomed their second child, Ryker Pratt, after being open about trying for a few years.
Pratt was once the show's main villain.
Pratt joined the show during season two, and it didn't take long for him to become known as the main villain of "The Hills."
Although he started dating Montag, he seriously disliked Conrad, and that drove a wedge between the two best friends.
On camera, Pratt frequently flirted with other girls when Heidi wasn't around and caused trouble between Conrad and her friends.
Pratt has since spoken about his interest in crystals, which he sells.
When "The Hills" ended, Pratt appeared on several different reality-TV shows alongside Montag, like "Celebrity Wife Swap" and "Celebrity Big Brother."
He also won Snapchatter of the Year at the 2018 Shorty Awards for his popular presence on the social-media app.
Like many of his former costars, Pratt joined the cast of "The Hills: New Beginnings" in 2019.
Stephanie Pratt navigated being Spencer's sister and one of Conrad's closest friends.
When Stephanie first appeared on "The Hills," it seemed like she was going to team up with Spencer and Montag and be Conrad's newest enemy.
Instead, she and Conrad quickly became close friends, and Stephanie acted as a sort of mediator between the three.
She eventually became one of the main faces of the show during season four.
After the show, Stephanie became a UK reality star.
In 2014, Stephanie appeared on "Celebrity Big Brother," and has since made several appearances on E4's "Made In Chelsea," a UK reality show.
She released a 2015 memoir titled "Made in Reality," in which she opened up about her experiences with drug abuse and eating disorders.
Whitney Port was Conrad's work buddy and good friend.
After meeting Conrad while working together as interns in the Teen Vogue closet, Port also served as a confidante for the show's star.
Port has started a family.
When "The Hills" ended, Port starred on the MTV spin-off show "The City," which ran for two seasons.
While filming "The City," Port met her current husband, Tim Rosenman, who was an associate producer for the show.
They got engaged about two years after they met and tied the knot in 2015. Port gave birth to their first child in 2017.
In addition to working on her lifestyle blog, Port also appeared on a few episodes of "The Hills: New Beginnings."
Jason Wahler was best known for being Conrad's boyfriend.
Conrad and Wahler dated at the beginning of "The Hills," and she even gave up her chance to go to Paris to get a house in Malibu, California, with him.
Although they broke up pretty early on, Wahler is known as one of Conrad's most famous exes on the show.
Wahler has worked to raise awareness about addiction.
After leaving the show, Wahler shared he had been arrested 18 times, with multiple charges related to drinking.
In 2010 and 2011, he appeared on "Celebrity Rehab With Dr. Drew," and has since worked to increase awareness about addiction.
In 2013, he married Ashley Slack, and they welcomed their first child together in 2017. Later that year, he received the Voice of Recovery Award from Faces and Voices of Recovery.
He has since appeared on episodes of "The Hills: New Beginnings," and is now a father of two, as of June 2021.
Brescia will likely always be known as the "homeboy who wore cowboy boots to the beach."
Brescia was often seen as the show's disheveled bad boy and the other half of the turbulent on-and-off relationship with Patridge.
Brescia is now a musician.
Brescia also joined the cast of "The Hills: New Beginnings" in 2019.
Brody Jenner and Conrad had a complicated relationship on the show.
During most of "The Hills," Jenner and Conrad were seen as best friends who hung out in the same crowd.
After Conrad and Wahler ended things, she and Jenner got romantically involved. Their ambiguous relationship served as most of the show's drama, even though things didn't work out in the end.
Jenner has remained a big name in the reality-TV world and was also on the show's reboot.
A few years after "The Hills" ended, Jenner returned to reality TV by appearing on the eighth season of E!'s "Keeping Up With The Kardashians."
In 2016, Jenner proposed to his girlfriend of a few years, Kaitlynn Carter. They tied the knot in 2018 and announced their split a year later.
Jenner starred on "The Hills: New Beginnings."
In 2022, Jenner started dating professional surfer Tia Blanco. At the beginning of this year, the couple announced they're expecting their first child.
Frankie Delgado was mainly known as Pratt and Jenner's friend.
Although Delgado never had a huge role on "The Hills," his presence is hard to forget.
He was good friends with both Pratt and Jenner, and he spent most of his time on the show getting them to go out to clubs with him and arranging huge parties.
Delgado married someone who was also on "The Hills."
They welcomed their first child in 2014 and their second in 2016.
Like many of his former cast members, Delgado appeared on the show's reboot.
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