Oh.

Olivia Hadjiioannou, aka Oh., is a multi-instrumentalist, composer, and producer who pours her soul into music that defies boxes—think crossover prog metal with a twist of rock, a dash of cinematic flair, and a sprinkle of avant-garde vibes. Kicking off with the 24-minute epic Sleeping World (2013), she’s built a rep for bold, genre-bending tracks like Trials, a standout during the economic crisis, and Metallia (2018), a prog metal gem that rocked film fests worldwide. In 2025, Olivia returns with the single and short film "I Pray for Love," marking a shift to distilled, prayer-like lyricism paired with groundbreaking AI-driven visuals. Like a Renaissance painting come alive through digital alchemy, the piece explores spiritual emergence and inner beauty, continuing Olivia’s legacy of blending progressive emotion and metaphysical depth.

From shredding guitars to layering vocals and mastering her own mixes, Oh. blends a cutting-edge experimental streak and raw passion.