Premise: Janis Joplin . In 1967 , Joplin rose to fame during an appearance at Monterey Pop Festival , where she was the lead singer of the then little-known San Francisco psychedelic rock band Big Brother and the Holding Company . After releasing two albums with the band , she left Big Brother to continue as a solo artist with her own backing groups , first the Kozmic Blues Band and then the Full Tilt Boogie Band .
Hypothesis: Janis Joplin worked with her brother.
Label: NEUTRAL