The series is being developed by Paramount+.
The '80s power ballad featured special guest Jude Keyz on the keyboard.
He performed the song for the first time during Metro Boomin's Coachella set April 14.
"Yes! Katy got booed," cheered co-judge Luke Bryan.
"Musical Stairs" features artists performing their latest hits in the Tonight Show stairwell, backed by The Roots.
The film will document The Judds singer's tour following the death of her mother Naomi Judd.
The fest takes place from June 7-18 and will feature 109 films.
The Broadway legend also received an ominous note from the Phantom of the Opera during the interview.
"I went home, immediately fell asleep in the hallway of my apartment," the late night host told James Corden.
The winner of season 15 chats about the no-holds-barred finale episode, how she pulled off two iconic lip syncs in one episode, and being a voice for the trans community.
