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Lauren Conrad officially caught the chopping bug (and can we take a moment to discuss how fab she looks?!). 

The 28-year-old beauty debuted her new short 'do when she stopped by the E! News studio on Tuesday—be sure to check out her full interview tonight!—where she also dished on her marriage to William Tell in addition to sharing her tips for dressing for the holidays. 

The fashionista will showcase three festive looks on tonight's show, which will feature more affordable items from her Kohl's collaboration as well as pricier pieces from her Paper Crown collection. 

PHOTOS: Lauren Conrad & William Tell's romance rewind

Lauren Conrad, Hair


But no fab outfit is complete without a sassy new 'do! So of course, we had to get the scoop on why L.C., who repeatedly teased her cut on Instagram, decided to chop off her signature locks after vowing in March that she'd "never go bob" again! 

"A different bob. I didn't want to go back to what I had before…" she said of the short style she sported briefly back in 2007. "I went a little bit shorter, and then I just figured, if I'm ever going to do it, just go for it." 

Conrad admits that the change took "a little bit" to get used to (particularly, since is was her "first hair cut in years"), but her trusted longtime hairdresser, Kristen Ess, ensured that the process went down smoothly. 

"My hairdresser did it slowly, she didn't do it all at once because she knew I would freak out," she explains. "So she cut it in like three steps…I see her a lot, so every time I'd see her, she'd take a little bit off."

As for whether she would give the same advice to fans who are hesitant to take the haircut plunge? 

"Not necessarily. I think I was just ready for a change," she says. "So many people I know right after they get married just chop it all off. Because for so long I was just growing it out, growing it out, I wanted long hair, but then I was like 'Oh, I don't have anything I'm planning for now.'" 

What do you think of Lauren's new cut? Tell us in the comments! 

For more from Conrad—including her style secrets for dressing for the holidays—tune in to E! News at 7 and 11 p.m. tonight and be sure to check out her website!

PHOTOS: See more celebs who rock the bob haircut