British rock group Jethro Tull were in their prog rock phase at the time. Their 1972 album, Thick As A Brick, was conceived by lead singer Ian Anderson as "the mother of all concept albums" and reached number one on the US Billboard Pop Albums Chart.
The Bell Jar is a semi-autobiographical novel by American poet and writer, Sylvia Plath. It tells of a female college student's emotional and mental breakdown in 1950s America.
Janis Joplin (1943–1970) was a female pioneer in the male-dominated world of rock music. She was inducted into the Rock and Roll Hall of Fame in 1995, and was given a Grammy Lifetime Achievement Award in 2005.