Alter Ego (soundtrack)

The soundtrack was produced by Soumka, who composed all of the instrumental pieces for the film score. Singer-songwriter Pimis Petrou composed all of the lyrical songs, while Antonis Vardis, one of the most successful Greek composers, composed the song "Zise Ti Zoi" for Sakis Rouvas, which was the main theme to promote the film in the mainstream. Rouvas contributed vocally to five songs on the soundtrack, two of which, namely "One With This World" and "Nothing" were duets with his co-star Doretta Papadimitriou and were performed in the film by the actors as the group Alter Ego. The song "Suspicious Minds" was written by Mark James and originally performed by Elvis Presley, but was covered by Rouvas. The majority of the songs are performed or titled in English, as was chosen by the film's producers for marketing reasons. Other than Rouvas, vocal performers include Dimitris Wang, Vello Leaf, V-Sag, Alexandra McKay, Baby Queen, The First Aid, and Mama.

The song "Zise Ti Zoi" became a hit and was also separately released as a CD single and digital download. The song "A Look of You" performed by V-Sag is the theme for the opening credits of the film.