Loki? is the first solo album from Arnaldo Baptista, the keyboardist, bassist and singer of the Brazilian band Os Mutantes. It was released in 1974 after a supposed nervous breakdown and it is considered one of the best albums in the 1970s Brazilian music scene. The album expresses his angst towards the height of post-modern society, along with the suffocating aspect of modernity: pollution, superpopulation, loneliness, etc. It was listed by Rolling Stone Brazil at #34 on the list of 100 Greatest Brazilian Albums of All Time.