Oops! Fox morning news anchor hilariously mistakes Lauren Conrad for 'Laguna Beach' co-star Kristin Cavallari

EXCLUSIVE: Lauren Conrad's Tips for Planning the Perfect Wedding

Shall we change Lauren Conrad's nickname from "LC" to "KC"?

The Laguna Beach alum was a guest on Good Day New York on Tuesday, where she was hilariously mistaken for one of her famous co-stars, Kristin Cavallari!

WATCH: Why Lauren Conrad Is Totally Fine Being Called 'Pretty Basic'

Anchors Rosanna Scotto and Greg Kelly welcomed Conrad to the show to talk about her new book, "Celebrate." Things got a bit awkward when Scotto asked, "So one day you're on a reality show, the next minute you're a beautiful mother. How many children do you have?"

Conrad -- who does not have any children -- reacted quite adorably, giggling as she said, "None."

"You don't have any? No kids?" Scotto responded, apparently still confused.

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Oops! Fox morning news anchor hilariously mistakes Lauren Conrad for 'Laguna Beach' co-star Kristin Cavallari
LOS ANGELES, CA - DECEMBER 19: Lauren Conrad and Kohl's team up with Emily, a patient at Childrens Hospital Los Angeles (CHLA), to surprise CHLA doctors with refreshed on-call rooms with items from the LC Lauren Conrad collection, available exclusively at Kohl's, on December 19, 2014 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for Kohl's Department Stores)
NEW YORK, NY - FEBRUARY 05: Actress Lauren Conrad attends John Frieda Hair Care Beach Blonde Collection Party at the Garage on February 5, 2015 in New York City. (Photo by Michael Stewart/WireImage)
LOS ANGELES, CA - FEBRUARY 12: Designers Lauren Conrad (L) and Anna Bond attend the Paper Crown + Rifle Paper Co. Pop-Up Shop With Lauren Conrad and Anna Bond At The Grove at The Grove on February 12, 2015 in Los Angeles, California. (Photo by Michael Buckner/Getty Images for Paper Crown + Rifle Paper Co.)
BEVERLY HILLS, CA - FEBRUARY 24: Lauren Conrad debuts her new Disney Cinderella Collection, inspired by the classic animated film, available exclusively at Kohl's on February 24, 2015 in Beverly Hills, California. (photo by Sarah Hummert/Getty Images for Kohl's Department Stores)
BEVERLY HILLS, CA - MAY 14: TV Personalities Ali Fedotowsky (L) and Lauren Conrad attend Lauren Conrad's ice cream social to debut her new Minnie Mouse Collection available exclusively at Kohl's on May 14, 2015 in Beverly Hills, California. (Photo by Jonathan Leibson/Getty Images for Kohl's Department Stores)
WEST HOLLYWOOD, CA - MAY 18: Lauren Conrad and Hannah Taylor attend the 10th Annual Global Women's Rights Awards at Pacific Design Center on May 18, 2015 in West Hollywood, California. (Photo by Todd Williamson/Getty Images)
LOS ANGELES, CA - AUGUST 22: (L-R) Whitney Port and Lauren Conrad attend a private event at Hyde Staples Center hosted by Tommy Bahama during the Taylor Swift concert on August 22, 2015 in Los Angeles, California. (Photo by Jason Merritt/Getty Images for Tommy Bahama)

Kelly weighed in to cover up the mishap, belting out, "We're still working on it, Rosanna!"

WATCH: Kristin Cavallari Says She Talks to Heidi Montag 'All the Time'

Scotto was, of course, referring to Cavallari, who is married to NFL pro Jay Cutler. The two have three children together -- sons Camden, 3, and Jaxon, 1, and a daughter, Saylor, four months. Like her co-star, Cavallari is also an author, recently releasing her own novel, "Balancing in Heels."

Though she may not be "a beautiful mother," Conrad is indeed an awesome wife to her lawyer beau, William Tell.

The duo tied the knot in a rustic-chic wedding on the California coastline in September 2014, and the blond beauty hasn't been able to stop gushing over him since!

"My favorite thing about being married is knowing that I have a partner in life that I get to do so many wonderful things with," she revealed on her blog last August. "Dreaming of the things we will do 20 years from now is so fun."

Likewise, Cavallari has found happiness in her marriage to Cutler, though she admits the two wouldn't exactly label their relationship as "perfect."

WATCH: Kristin Cavallari Talks Working on Marriage With Jay Cutler

"I'm very honest about the fact that we have problems," the 29-year-old reality star told ET in an exclusive interview last month. "We don't have a perfect relationship."

To hear more on how she and the Chicago Bears quarterback keep their romance alive, watch the video below.

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