Kristin Cavallari shuts down critics of romance with Mark Estes in viral TikTok

Kristin Cavallari, accustomed to scrutiny since her days on Laguna Beach, isn't letting critics dampen her spirits about her new relationship with Mark Estes. 

The 37-year-old took to TikTok on Saturday to address the backlash head-on. 

In a video filmed in her closet, Cavallari lip-synced to audio from a viral Inside Edition clip. 

The caption read, "When they're all up in arms that I'm dating a 24-year-old.

Andddd?" As she mouthed the words, "So what are you gonna do about it?" a voice off-screen responded, "We're reporting it." 

Undeterred, she continued to lip-sync, jesting, "Are you gonna arrest me? Are you gonna give me a ticket?"

After flashing a smile at the camera, the mother of three concluded her video. 

Last week, Kristin publicly confirmed her new relationship by posting a snapshot of the couple on her Instagram account. 

Captioning the sweet photo, she wrote, "He makes me happy."

On Friday she made her debut appearance on Mark Estes' TikTok account, Montana Boyz. 

In the video, Estes, alongside fellow members of their country trio Kaleb Campbell Winterburn and Kade Wilcox, lip-synced to Jason Aldean's track She's Country.

Each of the men took turns singing before Mark gestured toward Kristin, who strutted into the frame with a smile. 

He then embraced her from behind in a bear hug.