Taylor Swiftsurprised fans in London at Wembley Stadium on Saturday with a performance of I Did Something Bad, it was her first time playing theReputationsong during her Eras Tour run.

Asfan-captured videoshowcased, to introduce it, she told the crowd shes done hundreds of songs on this tour, but Ive not done one of my favorite ones cause Ive been waiting for the right crowd.

She added that shes seen Tony Award-winning performances in this crowd and pointed out that its such a dream to perform for a crowd like this, particularly with 92,000 people who are into it: Its magic, she said, before launching into the song on acoustic guitar.

LONDON, ENGLAND - AUGUST 16: EDITORIAL USE ONLY. NO COVERS. Taylor Swift performs onstage during  “Taylor Swift | The Eras Tour” at Wembley Stadium on August 16, 2024 in London, England.  (Photo by TAS2024/Getty Images)

LONDON, ENGLAND - AUGUST 16: EDITORIAL USE ONLY. NO COVERS. Taylor Swift performs onstage during “Taylor Swift | The Eras Tour” at Wembley Stadium on August 16, 2024 in London, England. (Photo by TAS2024/Getty Images)Getty Images

Fans have been hoping she might announce the re-recorded version ofReputation (Taylors Version), and the taste from the original 2017 album have some hoping she might announce it before her final Wembley show on Aug. 20.

She followed up theReputationgem with a mashup ofThe Tortured Poets Departments My Boy Only Breaks His Favorite Toys andEvermores Coney Island on piano.

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Earlier this month, Swift was slated to play three concerts in Vienna, but those dates were canceled after Austrian authorities hadthwarted a terrorist plot.