Conversation so far:
Is forever the name of one of their albums?
In November 2000, the group released Forever.
Was it a popular album?
In total, Forever achieved only a fraction of the success of its two best-selling predecessors, selling five million copies.

Question: Was that the reason that the spice girls took a hiatus?
Self-contained rewrite: Was forever's poor sale compared to it's predecessors the reason that the spice girls took a hiatus?