Folie à Deux (album) in rock and roll music. The title is a reference to the 27 Club, a group of influential musicians, including Janis Joplin, Kurt Cobain, and Jim Morrison, who all died at the age of 27. Wentz felt that he was living a similarly dangerous lifestyle, and was "stoked" to make it to his 28th birthday. Stump added "There was a countdown clock and everything. I remember, our manager called me up on Pete's 28th birthday and screamed, 'We made it!'" Folie à deux is a rare psychiatric syndrome in which symptoms of a delusional belief are transmitted from one individual
Janis Joplin his first solo album, "Garcia" (1972), is about Joplin and the end of her suffering through death. Mimi Farina's composition, "In the Quiet Morning", most famously covered by Joan Baez on her "Come from the Shadows" (1972) album, was a tribute to Joplin. Another song by Baez, "Children of the Eighties," mentioned Joplin. A Serge Gainsbourg-penned French language song by English singer Jane Birkin, "Ex fan des sixties" (1978), references Joplin alongside other disappeared "idols" such as Jimi Hendrix, Brian Jones, and Marc Bolan. When Joplin was alive, Country Joe McDonald released a song called "Janis" on his band's album