To avoid paying royalties to Eminem, Spotify pretends they don't know he sang "Lose Yourself".
https://gizmodo.com/eminems-publisher-sues-spotify-says-it-pretended-it-di-1837463094
According to the complaint, a copy of which was obtained by The Hollywood Reporter, Spotify has no license for Eminems compositions, and despite streaming these works billions of times, Spotify has not accounted to Eight Mile or paid Eight Mile for these streams but instead remitted random payments of some sort, which only purport to account for a fraction of those streams.
The suit adds that Spotify has placed Lose Yourself into a category called Copyright Control, reserved for songs for which the owner is not known. Eight Mile attacks the absurd notion that it cant be identified as the owner of such an iconic song, which was the centerpiece of the 2002 film 8 Mile, hit No. 1 on the Billboard Hot 100 and won an Oscar for best original song. According to chart data, Eminem is among the most followed artists on Spotify with monthly listens on par with Bruno Mars, Coldplay and Taylor Swift.