Taylor Swift performed perhaps one of her most famous non-album singles and film songs in her discography at "The Eras" tour - "Safe & Sound."

The performance came a week after the newest "The Hunger Games" film, "The Hunger Games: The Ballad of Songbirds and Snakes" was released in cinemas worldwide.

Taylor Swift Performs 'Safe & Sound' The Eras Tour

On her second night at Allianz Parque Stadium in Sao Paolo, Brazil, Taylor Swift shocked everyone when she performed "Safe & Sound," the lead single of the very first "The Hunger Games" film soundtrack in 2012. (via Billboard)

"Safe & Sound" was originally sung by Taylor Swift and the Civil Wars. The track was re-recorded as part of Taylor Swift's re-recording of "Red (Taylor's Version)."

As The Civil Wars have already split up, Swift has credited its members, Joy Williams and John Paul White, separately on the new re-recording.

With Swift performing "Safe & Sound," fans believe that it could open up the possibility of Taylor Swift performing the songs she have written and performed for films at the acoustic surprise song set of her "The Eras" concerts.

Watch Taylor Swift's performance of "Safe & Sound" below.

Taylor Swift won a Grammy Award for Best Song Written for Visual Media at the 55th Annual Grammy Awards in 2013, debuting at No. 30 on the Billboard Hot 100 chart at the time. The track has also been certified double platinum by the Recording Industry Association of America.

READ ALSO: Rachel Zegler Professes Love for Taylor Swift, Hopes For Debut Album Re-Release

Taylor Swift Performs 'Safe & Sound' Amid 'The Hunger Games' Renaissance

Taylor Swift's performance of "Safe & Sound" came at a very particular time as the film franchise recently released its fifth film and the prequel to the original three books and four films, "The Hunger Games: The Ballad of Songbirds and Snakes."

It's lead star, Rachel Zegler, who plays Lucy Gray Baird, is a die-hard Swiftie. In celebration of the song being performed live at "The Eras" tour, Swifties, who are also "Hunger Games" fans, unearthed one of Zegler's original YouTube video covers of the said song.

According to Deadline, "The Hunger Games: The Ballad of Songbirds and Snakes" is reaping the box office, besting Thanksgiving releases of "Wish" and "Napoleon" with a $42 million domestic gross in the past five days.

READ ALSO: Here's What Critics Are Saying About 'The Ballad Of Songbirds and Snakes' Soundtrack

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