Izzy began practicing harsh vocals in 2023 with Despair Eternal, a solo black metal project. She subsequently joined the black metal band Mimesis, initially for live performances and later for studio recordings.

At the same time, she launched the band Wüt, serving initially as a backing vocalist and bassist alongside lead singer Marike. In 2025, she took over as the lead vocalist. That same year, she also began performing harsh vocals for the black metal/crust band Sterben.