PARIS — If you didn't see the news cause you were somewhere else, Taylor Swift said she has been working on adding "The Tortured Poets Department" to her Eras Tour since the beginning of fall last year.

"We starting planning this surprise for you 8 or 9 months ago," she said during the acoustic set of her second show in La Défense Arena, "and then when we got two months off from the Eras Tour we really didn't take any time off at all. We just went directly back into rehearsals so I'd like to give it up to my crew, my dancers, my band."

The time frame lines up with her break after Mexico City in 2023, before the tour headed to Argentina and Brazil. During that month, she geared up for the release of "1989 (Taylor's Version)" and held a red carpet movie premiere in Los Angeles for her massively successful concert movie.

On her first night in Paris, Swift described the album as "Female Rage: The Musical," sending Swifties into a frenzy. Even though the album has only been out about two fortnights, fans dressed in outfits related to the 31 tracks and "Fortnight" music video.

More:Taylor Swift made big changes to Eras Tour. What to know about set list, 'Tortured Poets'

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Immediately following the music video release, Swift shared a YouTube short and introduced the #ForAFortnightChallenge showing two clips (in a montage of behind-the-scenes footage) of her crew rehearsing the new set.

The 11th era was wedged between "1989" and the acoustic set. Swift and her ensemble performed seven numbers: "But Daddy I Love Him," "So High School," "Who's Afraid of Little Old Me," "Down Bad," "Fortnight," "The Smallest Man Who Ever Lived" and "I Can Do It With A Broken Heart." Her white gown was designed and crafted by Vivienne Westwood.

The tortured poet is performing for 40,000-plus fans for four nights inside La Défense Arena. Europe's largest indoor arena is the residence for the Racing 92 rugby club. She then heads to Stockholm, Sweden, to continue the European leg of the Eras Tour.

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