Koza Mostra is a Greek rock band founded by Elias Kozas in 2011. It consists of Elias Kozas (vocals, classical and electric guitar), Stelios Tsompanidis (drums, backing vocals), Tasos Korkovelos (keyboards, backing vocals), Dimitris Christonis (bass guitar), Tasos Gentzis (saxophone, backing vocals) and Petros Lagontzos (electric guitar, backing vocals). The band fuses ska, punk, and rock music together with the style of traditional Greek folk music such as Macedonian Greek music and rebetiko. They are also known for performing in kilts or fustanella.
They represented Greece in the Eurovision Song Contest 2013 with Agathonas Iakovidis and the song "Alcohol Is Free", coming 6th in the final.