Conversation so far:
What year did Janis Joplin die?
Janis Joplin's death in October 1970 stunned her fans.
How old was Janis Joplin when she died in 1970?
Janis Joplin's death at age 27 stunned her fans.
Was Janis joplin with anyone when she died in 1970 at 27 years old?
Peggy Caserta and Seth Morgan had both failed to meet Janis Joplin the Friday immediately prior to her death.
Had anyone tried to stop Janis Joplin from using heroin?
Janis Joplin's manager Albert Grossman and his assistant/publicist Friedman, had staged an intervention.
Was Janis Joplin suicidal?
Janis Joplin's death was ruled as accidental.
Did anyone else from Janis Joplin band overdose besides her?
Big Brother guitarist James Gurley's wife, who was Janis Joplin's close friend, died from a heroin overdose in 1969.

Question: After her death, did Janis Joplin's popularity go up or down?
Self-contained rewrite: After her death, did Janis Joplin's popularity go up or down?