Conversation so far:
What was Slayer's Reign in Blood?
Reign in Blood is the third studio album by American thrash metal band Slayer.
What was the controversy over Slayer's Reign in Blood?
Slayer's Reign in Blood was delayed because of concerns regarding lyrical subject matter of the track Angel of Death, which refers to Josef Mengele and describes acts of human experimentation.

Question: Was Reign in Blood popular?
Self-contained rewrite: Was the Salyer album Reign in Blood popular?