The singer is currently in Sydney filming her role as a coach on "The Voice Australia" as well.
The country singer, who was on Team Blake and finished as the Voice season 12 runner-up in 2017, shared the news of Janis Duski's death on Instagram.
One coach added a second win to their belt on the Tuesday night finale.
The competition was whittled down following Taylor Swift-themed group performances.
NBC's long-running singing competition will also feature Keith Urban, Earth, Wind & Fire and more in its finale.
The semifinalists were grouped into trios, with one team delivering a sizzling fan favorite from Reputation.
The song ended with a black and white shot of the country legend's mother, Jacqueline, who died in March 2020.
The Team Niall member blew away her mentor with the string-drenched take on the goth band's beloved 1989 ballad.
There was drama for Shimizu following her Playoff performance.
The Team Reba member was a surprise scratch from Monday night's (Nov. 27) episode.
