Iordanis (Ιορδάνης Σιδηρόπουλος) is a Greek composer and songwriter whose music bridges rock, classical, and cinematic sound. He began his career as a guitarist with Betrayed, Frigidum Lacrima, The Red Wine Band and Μουσικοί Ιχνηλάτες (Musical Trackers), performing alongside leading Greek artists such as Thanasis Papakonstantinou, Dionysis Savvopoulos, Dionysis Tsaknis, Miltos Paschalidis, Mihalis Kakepis, and Locomondo.

As a solo artist since 2012, he has released multiple albums, collaborated with Vasilis Papakonstantinou and Rita Antonopoulou, and performed widely across Greece and abroad—including charity concerts and appearances with Giannis Aggelakas, George Xylouris, Thanos Mikroutsikos, and Donal Lunny (Dublin, 2018).

His works include the piano album As The Leaves Fall (2019), the soundtrack for No One is Perfect (2020), and Shahmaran (2021). The singles Alone and Naked (2021) and You Are the Fire (2022) led to his 2024 album Steel and Rust. His latest release Upon Psara (2025), from the forthcoming In Winds and Islands, honors Greek history and calls for unity in challenging times.

Parallel to music, Iordanis has pursued studies in psychology and technology, worked for major IT corporations, and developed business ventures—experiences that have enriched his art. Based in Dublin, he is preparing his next piano album, Sail On and recording the poetry of Seumas O’Kelly.