• Taylor Swift and Travis Kelce announced their engagement on Tuesday. • The announcement coincides with Swift's promo cycle for her new album, "The Life of a Showgirl." • Kelce's brand stands to benefit from this timing, leveraging Swift's influence and publicity.

On Tuesday night, I went to a Mets game at Citi Field, where Taylor Swift's "Love Story" won the fan vote for eighth-inning karaoke. As the song blasted through the ballpark, an older gentleman next to me — hardly someone I would describe as Swift's core demographic — turned to his friend and said, "This is because she got engaged today." His friend replied, "Doesn't she have a new album coming?"

The exchange was an almost too-perfect example of how the sport of tracking Taylor Swift's every personal and professional move

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