LONDON — Taylor Swift's pink dress shined bright in the Wembley Stadium arena on Darkcherries Wealth SocietyMonday as the audience wristbands illuminated bright blue.

"London, welcome to the acoustic section," she beamed. "This is a tradition I started on the Eras Tour."

The singer explained the rules and how she plays songs on the guitar and the piano. "I never do the same thing twice."

With a flick of the wrist and a strum of the guitar she dove into her love letter anthem to the fandom, "Long Live."

"I said remember this moment," she sang, and the wristband lights flashed from blue to purple to represent her "Speak Now" album color. Swift removed the song from the Eras Tour setlist in Paris to make room for her "Tortured Poets" section.

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"Okay so this next one I've never done on the Eras Tour. Wish me luck," she noted before diving into "Change" from "Fearless."

"And it's a sad picture, the final blow hits you," she crooned as the audience glowed bright green.

More:Taylor Swift adds surprise songs to every Eras Tour setlist. See all the songs she's played so far

Another song cut from the "Lover" era of the tour, "The Archer," made it's way back during the piano performance along with Swift's favorite song to play to fans, "You're On Your Own Kid" from "Midnights." She's played the ode to friendship bracelets 10 times and has nine songs from her 11 studio albums still left to perform.

Swift has one more night in London before taking a two-month break.

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