Conversation so far:
What was Round Room?
Round Room is the tenth studio album by the American rock band Phish.
Was Undermind another one of Phish's albums?
Phish's final album, Undermind, was released in late spring.
When did Phish break up?
On May 25, 2004, Anastasio announced on Phish's website that the band was breaking up after their summer tour.

Question: Why did they break up?
Self-contained rewrite: Why did Phish break up?