Conversation so far:
Did Janis preform at WoodStock?
Joplin appeared at Woodstock starting at approximately 2:00 a.m., on Sunday, August 17, 1969.
Was this performance a success?
Joplin was ultimately unhappy with her performance, however, and blamed Caserta.
Why did she blame Caserta for her performance?
Faced with a ten-hour wait after arriving at the backstage area, Joplin shot heroin and drank alcohol with Caserta.
What was her relationship with Caserta?
CANNOTANSWER.
How did she feel about performing at WoodStock?
Joplin saw the enormous crowd, she instantly became extremely nervous and giddy.
Did she have any personal supporters with her when she went to Woodstock?
the pregnant Joan Baez and Baez's mother.

Question: Did she perform with any other famous people at woodstock?
Self-contained rewrite: Besides having personal supporters with her, did Janis Joplin perform with any other famous people at woodstock?