The Amazon MP3 Store offers downloads of Queen's Greatest Hits MP3 Album for $3.99. (Google Play charges the same.) That's the lowest price we could find for this 17-track, DRM-free rock album, which was released in 1992. (iTunes charges $11.99.) Amazon MP3 Downloader is required.

Of note, the Amazon MP3 Store offers downloads of Queen's A Night At The Opera Deluxe Version MP3 Album for $3.99. (Google Play charges the same.) That's the lowest price we could find for this 18-track, DRM-free rock album, which was released in 2011. (iTunes charges $11.99.) Amazon MP3 Downloader is required.