Conversation so far:
What is the Kozmic Blues band?
After splitting from Big Brother and the Holding Company, Janice Joplin formed a new backup group, the Kozmic Blues Band.
Was the Kozmic Blues band successful?
The Kozmic Blues was Janice Joplin's backup band.
What did the Kozmic Blues  sing?
The Kozmic Blues was Janice Joplin's backup band.

Question: What did she do with the band?
Self-contained rewrite: What did Janice Joplin do with the band the Kozmic Blues ?