"Non siamo soli" (Italian: [non ˈsjaːmo ˈsoːli]; English: "We Are Not Alone") is a single by Eros Ramazzotti with the Latin singer Ricky Martin, who exclusively for it sang in Italian. The song, the first single from the greatest hits of Eros Ramazzotti, e², has a second Spanish-language version, "No Estamos Solos".

The music video for the song was directed by Wayne Isham and was filmed in Miami Beach, Florida in August 2007.

The song topped the Italian chart for eleven consecutive weeks. It also peaked at number two in Spain and number three in Switzerland. The song reached number fifteen in Belgium Wallonia, number thirty-two in Germany and number forty-five in Austria. In the United States, it peaked at number twenty-one on the Hot Latin Songs.

European CD/digital single

European CD maxi-single

^{^}shipments figures based on certification alone

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