Alexandra Sieti was born and raised in Thessaloniki. He graduated from the Music College of Thessaloniki, where he was taught classical theory, harmony, piano, etc. In parallel with her studies in English Philology, in 2013 she started lessons on jazz vocals and theory at the Contemporary Conservatory of Thessaloniki with professor Vicky Almazidu.

In 2014 and 2015 he participated in the Summer Music Academy, New Bulgarian University with artists such as Craig Bailey, David Murray, Marc Halbeer, Milcho Leviev and others, where she received an honorary distinction in singing. She has studied classical ballet and modern dance for eight years, while she starred in the musical "Anything Goes" by Cole Porter (Anatolia Drama Club).

Since 2014 she has started collaborating with various bands such as The Dude and the band of George Avramidis.
Among others she has collaborated with Oleg Chaly, Charis Kapetanakis, Alexandros Spanidis and Nikos Vargiamidis.

In 2022 she released her debut album with the funk soul band Souled Out, entitled "Sunny side up".