Although primarily associated with melodic death metal, she has appeared as a guest vocalist for power metal and symphonic metal bands, notably Kamelot and Delain, and has performed live with Nightwish and Tarja Turunen.
Meskipun terkait dengan melodic death metal, dia juga muncul sebagai vokalis tamu untuk band power metal dan symphonic metal, termasuk Kamelot dan Delain, dan telah tampil live dengan Nightwish.