Lauren Conrad and Heidi Montag smiling

Upon its debut in 2006, "The Hills" took aspirational California living to a whole new level. The "Laguna Beach: The Real Orange County" spin-off gave viewers more reason to follow the fast-paced lives of "Laguna Beach" stars Lauren Conrad, Lo Bosworth, and Kristin Cavallari. In addition, fans were treated to another crop of soon-to-be celebrities whose names would feature in countless headlines and in shocking storylines each week on MTV.

The marvelous popularity of "The Hills" propelled its cast (and the show’s "Unwritten" theme song by Natasha Bedingfield) into unimaginable fame well past its expiration date in 2010. LC dropped her nickname and became Lauren Conrad, a celebrated fashion designer, wife, and mom of two kids. Meanwhile, Cavallari went on to marry and divorce NFL quarterback Jay Cutler, become a mother of three children, and star in her own reality show.

Nine years after the final episode of the series aired, its reboot titled "The Hills: New Beginnings" premiered. Now longstanding fans of "The Hills" are reliving the magic that first made the show a pop culture phenomenon. With the series experiencing a second life, it’s only right to take a look back at the original cast of "The Hills" to see where they are now.

Lauren Conrad became a highly successful businesswoman with a family

Lauren Conrad smiling, then and now

On "The Hills," Lauren Conrad was known as aspiring fashion designer LC from Laguna Beach, California. Bright-eyed and eager to take on her studies at the Fashion Institute of Design and Merchandising, Conrad was the main star of the show. Fans glommed onto her internship experiences at Teen Vogue and couldn’t wait to see what became of her romantic relationships, particularly with resident bad boy Jason Wahler. Her friendships also took center stage. When her friendship with Audrina Patridge took a rocky turn, a dramatic conversation between the two led to a meme-worthy moment thanks to Conrad’s famous single black tear.

After six seasons of "The Hills," "the girl who didn’t go to Paris" did pretty well for herself. Lauren Conrad has had a stunning transformation, graduating from FIDM and creating a handful of fashion lines, including The Lauren Conrad Collection (via Page Six), LC Lauren Conrad, and Paper Crown. The entrepreneur also expanded into accessories, beauty, kids, and home and office, and she became an author. Her novels "L.A. Candy" and "Sweet Little Lies" have topped the prestigious New York Times Bestsellers list.

Besides being a savvy businesswoman, Conrad married Something Corporate guitarist/backing vocalist William Tell, whom she first met at the age of 16 (via Us Weekly), in 2014. They are the proud parents of two sons, Charlie Wolf and Liam James.

Kristin Cavallari posing, then and now
Heidi Montag-Pratt smiling, Then and Now
Spencer Pratt smiling, then and Now
Audrina Patridge posing, then and now
Stephanie Pratt smiling, then and Now
Lo Bosworth smiling, then and now
Whitney Port smiling, then and Now
Brody Jenner: Then and Now
Jason Wahler, then and Now
Justin Bobby, then and now
Frankie Delgado: Then and Now
Kelly Cutrone: Then and Now
Lisa Love: Then and Now