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
Brian Jones on US television, and Jim Morrison of the Doors published a poem titled "Ode to L.A. While Thinking of Brian Jones, Deceased". Coincidentally, Hendrix and Morrison both died within the following two years. The Rolling Stones performed at a free concert in Hyde Park on 5 July 1969, two days after Jones' death. The band decided to dedicate the concert (which had been scheduled weeks earlier as an opportunity to present their new guitarist, Mick Taylor) to Jones. Before the Stones' set, Jagger read excerpts from "Adonais", a poem by Percy Bysshe Shelley about the death of his friend John