How old is your music taste? Spotify will tell you, though you may not like it

There's how old you are, and there's how old Spotify thinks you are.

That divide became clear this week with the release of Spotify Wrapped, the streaming platform's personalized year-end recap.

It walks listeners through their top artists, albums, genres and more in a self-reflective (and occasionally mortifying) interactive slideshow, based on data and delivered with sass. The decade-old tradition varies slightly in its aesthetics and substance every year, and this edition seems to have caught a lot of users off guard by bluntly informing them of their "listening age."

"Age is just a number, so don't take this personally," reads one of the slides, before proceeding to alternately humble, amuse and confuse.

Charli xcx, the 30-something electro-pop artist who invented "Brat," is spi