By now, your TikTok For You Page and Instagram Stories have been flooded with people sharing their Spotify Wrapped data — the usual rundown of top artists, songs, and genres. But this year, Spotify added a playful twist that has taken over the discourse: a new “Listening Age” function, which assigns users an age based on the music they consumed in 2025.

“Age is just a number. So don’t take this personally,” the Spotify slide warns, before revealing each user’s calculated listening age.

How exactly did Spotify land on that number, though? Marc Hazan, Spotify’s SVP of Marketing and Partnerships, says the company’s creatives, editors, and data scientists built the Listening Age metric around the concept of a “reminiscence bump,” a person’s tendency to gravitate toward music released dur

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