Oh man, throwback to when they forced the U2 albums on to everyone’s device for ReasonsTM
Google did the same thing with Transformers 2 I think. It still shows up as Purchased for me even though I absolutely did not purchase that. Good way to ensure I never ever watch any Transformers movie!
These days you can delete the album from your library and set the Music app to not automatically download your purchases. If you want to go an extra mile, you can login to your iTunes account to view your purchases and hide it there too.