It’s natural that “Greatest Hits” compilation albums are among the biggest-sellers; it’s an easy way for a casual fan to get most of an artist’s biggest hits in one package. The biggest-selling album in U.S. history is the Eagles’ Greatest Hits 1971-1975, while in the U.K. it’s Queen’s Greatest Hits. But some artists decided to give their “Best Of” albums proper titles. Here are 15 such recordings, and you’ll have to choose between two artists to determine which one recorded that “Greatest Hits” album.

Take the Quiz: The Essential, Greatest and Very Best Super Top Hits History Collection