Delirium is an Italian progressive rock musical group, best known for the song "Jesahel".

[1] The group changed its name after Ivano Fossati joined and replaced the Sagittari singer Riccardo Anselmi towards the end of 1970.

[1] In 1972 Delirium entered the Sanremo Music Festival with the song "Jesahel", reaching sixth place in the competition and peaking number one on the Italian hit parade.

[2][4] After the new single "Haum" that Delirium presented at Un disco per l'estate Fossati left the group to start a solo career.

[1][2] Media related to Delirium (musical group from Italy) at Wikimedia Commons