ET spoke with Lee at the premiere of 'The Hills: New Beginnings,' airing Monday, June 24 on MTV.
He also teases the status of Spencer and Stephanie Pratt's tenuous relationship.
ET spoke with Lee on the red carpet ahead of the 2019 MTV Movie & TV awards.
Barton is a new addition to the cast, along with Pamela Anderson and Tommy Lee's son Brandon.
'The Hills: New Beginnings' premieres June 24 on MTV.
The two shared pics of each other seemingly reconciling via Instagram on Thursday.
ET spoke with the reality star at her Uncommon James pop-shop in Los Angeles on Tuesday.
The show is slated to debut in 2019.
Brandon Lee has responded to dad Tommy Lee's latest Instagram post directed at him in their ongoing social media feud.
Looks like the 50-year-old actress had her recent family drama in mind during Father's Day.
The father and son have been feuding online since Tommy’s Father’s Day post.
On Father's Day, Brandon posted a disturbing video of his dad appearing to be passed out on the floor on Instagram.
The actress is standing by her son amid his public feuding with his dad, Tommy Lee.
"Sorry for the noise everyone," the 28-year-old actor wrote. "Hopefully this is the End."
