Conversation so far:
what is A beautiful World by Robin Thicke?
Beautiful World is the debut studio album by American singer-songwriter Robin Thicke.
Was the album Beautiful World by Robin Thicke successful?
The album's under-performance troubled Robin Thicke personally, but it proved enough to make him a wanted collaborator.

Question: how many copies did it sell?
Self-contained rewrite: how many copies did the album Beautiful World by Robin Thicke sell despite its under-performance?