At a conference earlier this week, Ek revealed that there are 39,000 active playlists named "Shower." And these playlists get 550,000 streams every day (no pun intended).
But what songs are they listening to?
Business Insider reached out to Spotify to find out. Spotify's data team crunched the numbers for us and came up with a playlist of the top 20 songs.
These are the 20 jams people like to play most when they are in the shower.