Conversation so far:
What is L.A. Woman?
L.A. Woman is the sixth studio album by the American rock band the Doors
Was the album L.A. Woman by American rock band the doors a success?
Despite a low Billboard chart peak at No. 9, L.A. Woman contained two Top 20 hits and went on to be their second best-selling studio album

Question: What was their best selling album?
Self-contained rewrite: What was American rock band the doors best selling album?