The supermodel responded to William's accusations during Thursday's episode of 'The Talk.'
ET exclusively caught up with the model and her pro partner, Val Chmerkovskiy, on Thursday.
Julianne dished to ET about Sailor filling in on 'DWTS' following her mom's injury after Tuesday's 'AGT' taping.
Sailor Brinkley-Cook took over for her mom on the ABC competition series.
From Ally Brooke and Hannah Brown, to Sean Spicer and Lamar Odom, here are the most memorable moments from the 'DWTS' premiere.
Season 28 kicked off with a bang!
ET spoke with Brinkley, her daughter Sailor and her partner, Val Chmerkovskiy, after Monday night's season 28 premiere.
The model and her daughter opened up to ET about the last-minute switch-up following her broken arm.
After weeks of anticipation, the partners were finally revealed during the season 28 premiere on Monday.
Despite having only a few hours to learn the routine, the 21-year-old model brought her A-game Monday night.
The model and actress is being replaced by her daughter, Sailor Brinkley-Cook.
The 21-year-old 'Sports Illustrated' model is replacing her famous mom on 'Dancing With the Stars.'
While Christie Brinkley is upset she won't be able to compete on this season's 'DWTS,' she couldn't be more proud of her daughter.
