Mariana Efstratiou is a Greek singer, connected on several occasions with the Eurovision Song Contest. In 1987 she appeared as a backing singer for the duo Bang. Mariana won the Greek national song contest in 1989, overcoming Greek star Anna Vissi, and represented Greece in Lausanne with To diko sou asteri. The song was placed 9th. In 1996, ERT selected her to represent Greece again, this time with the song Emis forame to himona anixiatika, but the song could only manage 14th place in Oslo. Mariana sang a number of songs in the semi-finals of the Greek national contest in 1998, none of which won.