Secrets revealed.

Taylor Swift has been making headlines during the London shows of her forever-running Eras Tour.

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After the first show on Friday night, she finally went IG official with her boyfriend Travis Kelce — and with a little help from Prince William and his children George and Charlotte.

@taylorswift / Via instagram.com

During last night’s London show, Taylor decided to reveal a little songwriting tidbit behind one of the more conversation-starting songs on her latest mega-hit album The Tortured Poets Department.

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So, let’s talk about “thanK you aIMee” for a moment. Almost immediately after Tortured Poets was released, the general read on the song was that it’s a diss track against one of Taylor’s more public nemeses, Kim Kardashian.

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Adding fuel to the speculative fire is that, in the song’s literal title, the letters “K,” “I,” and “M” are capitalized while the rest of the song title is lower-cased. See what she did there?

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So, USA Today reports that Taylor debuted “thanK you aIMee” for the first time in a live setting last night — and before she launched into the song, Taylor explained a little bit (but not too much) about the song’s true meaning.

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“It really makes me think about how every time somebody talks shit,” Taylor told the crowd before diving into the song.

Kevin Mazur / Getty Images for TAS Rights Management

“It just makes me work even harder and it makes me that much tougher. So it also makes me incredibly thankful for this.”

Kevin Mazur / Getty Images for TAS Rights Management

A fan account also pointed out that Taylor basically did a mash-up of “thanK you aIMee” and “Mean,” another song about striking back against the haters.

Kevin Mazur / Getty Images for TAS Rights Management