e² is a greatest hits album by the Italian singer Eros Ramazzotti, released in Europe and Latin America on 26 October 2007. This is his fourteenth album (including live and compilation albums), and his second greatest hits album after Eros in 1997. The first single released from the album was "Non siamo soli", a vocal duet with the Latin singer Ricky Martin. Track listing Disc 1 The first disc has four new songs and fourteen remastered hits. Disc 2 The second disc has seventeen hits "revised" with popular international artists. DVD (limited edition only) A limited edition DVD was released in Italy, with an additional DVD with fourteen music videos. Charts Weekly charts Year-end charts Certifications References Eros Ramazzotti compilation albums Albums produced by John Shanks 2007 greatest hits albums Sony BMG Norte compilation albums Music video compilation albums 2007 video albums Italian-language compilation albums Spanish-language compilation albums Albums produced by Michele Canova