The new reality series will air on Freeform and will follow the pair as they get ready to walk down the aisle.
The new YouTube Red series is now streaming.
Smith also says his daughter taught him a valuable lesson by shaving her head.
The reality star's fashion choice couldn't keep her from sweating, though.
Kendall Jenner Finds Grey Hair, Flashes Nipple Piercing In NSFW Sheer Top
The third installment in the franchise premieres Saturday, June 25 at 8 p.m. ET/PT on Lifetime.
The new series premieres soon on YouTube Red.
The 45-year-old 'RHONY' star sat down with ET at her home in New York City.
The 'Real Housewives of New York' star also opens up to ET about whether she'll have more children or marry again.
The reality star opened up to ET exclusively just hours after she seemingly confirmed the romance between the actors.
The 28-year-old actress caught up with ET on the red carpet at the premiere of her new movie 'The Shallows'.
The 32-year-old actress confirmed her second pregnancy last week.
The 26-year-old singer and her new actor beau were seen Tuesday night at Selena Gomez's concert in Nashville.
The 37-year-old actress was snapped reenacting Kennedy's 1968 wedding to Aristotle Onassis.
