So reality TV isn't real?

The reality shows that once made Kristin Cavallari a household name, definitely don't define her today — and she's spilling major details about her time on The Hills.

The 29-year-old mom of three reflected on her MTV days during a Q&A with Momtastic, where she basically confirmed, the reality show we relied on to survive our own social lives, was fake.

the hills cast partygetty images

MTV's The Hills Cast at a finale event. (Photo Credit: Getty Images).

"I looked at it strictly as a job; we filmed three different scenes, three days a week. I had my life on-camera and a completely different life off-camera. I knew the character they wanted me to play, and this time I was game. Since I looked at it as a job, it was fun to play up the villain character," she said.

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While there has been tons of speculation in the past that the hit show has been staged and scripted, Cavallari and her co-stars have pretty much confirmed what we thought could never be true.

Click through the gallery to see other castmates of The Hills speak out about the show's authenticity!