Singer, performer, and theatre educator Stelina Apostolopoulou began her career as a lyric singer in Greece. There she was a member of the Opera Studio of the National Opera of Greece from 2011 to 2013. In 2018 she completed her vocal studies at the Berlin University of the Arts and was a laureate of the German Academic Exchange Service (DAAD). She has performed in productions at the Athens Concert Hall, the Greek National Opera and various festivals such as the Greek Evmelia Festival, the Infektion!Festival for New Music Theatre, and the Musiktheatertage in Vienna. As co-founder of Ensemble Mosatrïc, she addresses aspects of diversity in music and the performing arts. She also composes her own music in collaboration with various musicians and music producers.