Last year, Apple launched ‘Replay’ for the Apple Music, which shows subscribers their most listened songs since they began the service. Along with the announcement Apple has also said that they began tracking listening habits and has put them in a playlist called ‘Replay 2020’.
Replay 2020
Apple Music subscribers can get their ‘Replay 2020’ playlist by going to the Apple Music web version and scrolling down until they reach the yearly Replay lists. Then, go to the 2020 Replay and click the ‘Add’ button to have it sent to your library. The playlist will then show up on all your Apple devices.

As promised last year, @AppleMusic's Replay 2020 playlist is already available. Just log into https://t.co/ZM7c2lXrd6, scroll to the bottom, and add it to your library. This will continue to update every week until December 31.
— Federico Viticci (@viticci) February 16, 2020
Very nice. ? pic.twitter.com/xjYK0Q5XVx
The ‘2020 Replay’ will be constantly updated depending on the songs you listen to. By the end of 2020 you may have up to a hundred songs on the ‘Replay 2020’ playlist. The feature was first available via the Apple Music iOS app but it was only temporary and for promotional purposes.