The new season, dubbed the "Tournament of All Stars" is set to debut in May on Paramount+.
The Shady Films doc will premiere in the U.S. later this year.
The actor also shared how the BLACKPINK star was "so kind" to his daughter.
"Hey, listen, he couldn't hold it," co-host Kenny Smith cracked about DJ Diesel.
The aspiring musician, nicknamed "The Singing Garbage Man," competed on season 18 of Idol in 2020.
The director says Rocky held his own during scenes with the iconic actor.
The project is currently in production with the pop star's Eras Tour film director at the helm.
The actress, who hit the charts with her work on Buffy the Vampire Slayer's iconic musical episode, passed away in February at the age of 39.
The set comes days after the band made its Coachella debut.
This year's event will also feature the premieres of films about Counting Crows, Billy Joel, Culture Club, Billy Idol, Becky G, Eddie Vedder and more.
