"Pensiero" ('Thought') is a 1971 song composed by Roby Facchinetti and Valerio Negrini.

The melody of the song was composed by Roby Facchinetti with the intent of being performed chorally by all members of the group.

[1] The lyric theme go against the will of their producer and their record company, as it deals with social criticism about the story of a man unjustly imprisoned.

[1] The tensions between the producer Giancarlo Lucariello and the drummer-lyricist Valerio Negrini, eventually led the latter to leave the group (even if keeping on collaborating with them as lyricist) and being replaced by Stefano D'Orazio.

[1] In 1998, Negrini and Facchinetti sued Alanis Morissette for plagiarism of the song "Mary Jane", eventually losing the case.