The Hills fans left CONFUSED over latest addition to the cast

After taking the lead role in Laguna Beach: The Real Orange County, The Hills followed Lauren as she pursued a fashion career in Los Angeles. Lauren narrated the show up until her departure half-way through the fifth season. On the show, Lauren famously fell out with former BFFs Heidi Montag and Heidi's then boyfriend (now husband) Spencer Pratt. It was all over a vicious rumour regarding an alleged sex tape with Lauren's former boyfriend Jason Wahler.

Since leaving the show in 2009, Lauren has gone on to write six books (LA Candy, Sweet Little Lies, Sugar and Spice, The Fame Game, Starstruck and Infamous) as well as a style guide. She's also launched fashion lines and beauty collections. In 2010 Lauren filmed an alternative ending to The Hills which aired in 2013. She also returned for a The Hills reunion show called That Was Then, This Is Now in 2016. Lauren married former musician William Tell in 2014, and the couple welcomed son Liam James in July 2017. Lauren recently announced she's expecting her second child with William.

Audrina was introduced on the show as Lauren and Heidi's neighbour and struck up a friendship with the girls. She later moved in with Lauren and her former school friend Lo Bosworth, and the girls went on to get their own place together. Audrina and Lo had a rocky friendship but made amends before Audrina moved out of their LA pad. On the show, Audrina also had very turbulent relationship with Justin Brescia aka Justin Bobby - which was the centre of much drama within the group.

After The Hills ended, Audrina landed her own eponymous TV show following her life and family relationships, but the series was cancelled after just one season. Audrina married Corey Bohan in 2016 after dating since 2008, however they couple separated in 2017. They share a daughter, Kirra Maxx.

Another Laguna Beach alum, Kristina Cavallari joined the cast of The Hills in 2009. She appeared in the series 5 mid-season finale, catching the bouquet at Heidi and Spencer's wedding. She then took over Lauren's role as the show's voice over for the remain two seasons following LC's departure.

After THAT epic plot twist of a finale (if you know, you know) and leaving The Hills and Brody Jenner behind for 'Europe', Kristin went on to become a fashion designer and television actress. She married American football player Jay Cutler in 2013. The couple share three children.

Whitney Port joined the cast of The Hills in 2006, interning with Lauren at Teen Vogue. After Lauren decided not to go to Paris to give her relationship with ex Jason Wahler another go, Whitney took the slot. The girls then both secured Fashion PR jobs at Kelly Cutrone's agency People's Revolution.

After leaving The Hills to pursue a career as a fashion designer in New York, Whitney landed her own spin-off show The City. Which also introduced the world to Olivia Palermo.In 2006, Whitney launched her own fashion label Whitney Eve.

Before we knew him as Kendall and Kylie's half brother and Kim, Kourtney and Khloe's step sibling, Brody was our first reality TV crush, previously starring on The Princes of Malibu with his brother Brandon and pal Spencer Pratt. Cast as a The Hills bad boy, Brody enjoyed flings with Lauren and Jen Bunney, then rekindled his romance with ex-girlfriend Kristin Cavallari in the second half of season 5.

Brody was given is own spin-off show, Bromance, in 2008 and often appeared on alongside his step siblings on Keeping Up With The Kardashians.

Kelly terrified us as the no-nonsense CEO of People's Revolution, where Lauren and Whitney landed jobs after their internships at Teen Vogue.

Kelly landed her own reality show Kell On Earth in 2010, which followed her as she balanced running a company, putting on fashion show and life as single mum.

Lo joined the cast as another former Laguna Beach student, she moved in with Lauren and Audrina in series 3.

Lo has gone on to launch a website and write a book, both called The Lo Down by Lo Bosworth.

Justin Bobby was the OG bad boy and is best known for his very turbulent relationship with Audrina Patridge.

During the show Justin was a hair stylist for the band Maroon 5, and he's since continued his career as a hair dresser. Justin launched his online hair care products called BRUSH by Justin Bobby Brescia in 2012. He's also the vocalist, guitarist, and percussionist for his band BobbyrocK.

Jason Wahler aka the reason Lauren will "always be known as the girl who didn't go to Paris", was LC's high school boyfriend and another Laguna Beach alum.

After struggling with fame on Laguna Beach and The Hills, Jason battled with substance abuse and alcohol abuse. However, after over seven years sober he's now committed to raising awareness about addiction.

If you only remember The Hills for one thing, it's got to be the birth of Speidi. Heidi and Spencer's relationship certainly ruffled a few feathers on the show, and caused the breakdown of Heidi and Lauren's friendship. The couple got engaged in 2007, eloped in 2008 and then married AGAIN in 2009 after Heidi said she wanted a big wedding with all her friends and family. Heidi and Spencer last appeared on the show during episode 4 of series 6, before Spencer was kicked off Spencer was kicked off for threatening to kill a producer.

Speidi have gone on to ruffle even more feathers after The Hills. Heidi filed for divorce in 2010, however it was later revealed the reasons behind the divorce were to help boost her career and change the couple's image. In 2013 they appeared on Celebrity Big Brother, had a HUGE feud with Rylan Clarke and became one of the most hated couples on the show. They came second as Rylan took the crown. In 2017 they returned to the Big Brother house for an All-Stars series. The couple welcomed their first child, a son called Gunner Stone, in October 2017.

Emily appeared in several episodes of the show as a intern at Teen Vogue with Lauren and Whitney. She was often labelled the 'super intern' due to outshining the other girls at work.

Emily went on to launch The Gloss lifestyle blog and become the founder and CEO of Glossier cosmetics company.

Frankie was Brody Jenner's party-loving pal.

He's still Brody Jenner's party-loving pal. Frankie married Jennifer Acosta in 2013 - the couple share two children together.

Spencer's younger sister Stephanie was a bit of a wild one on The Hills. Out of loyalty to her brother, Stephanie sided with Spencer and Heidi in their feud with Lauren. However, after realising their shared interests in fashion and enrolling in the same course, Stephanie and Lauren became friends, much to the disdain of Speidi.

After leaving the Hills, Steph went on to tackle the world of reality TV here in good ol' Blighty, landing a role in Made In Chelsea. In 2015 Steph released a book, Made in Reality: From the Hills of L.A. to London's Made in Chelsea, in which she opened up about her struggles with drug use and bulimia as a teen.