American Songwriter has picked out four rock vocalists whose distinctive voices, it argues, showed the individuality of 1990s rock, at a time when singers embraced unique styles rather than a uniform sound. The piece highlights how each artist brought a different vocal signature to the era's alternative and grunge scenes, shaping the sound of 1990s rock music.

The list includes Soundgarden's Chris Cornell, praised for his wide vocal range spanning whispers to powerful screams; Nirvana's Kurt Cobain, credited with defining grunge through emotionally raw, transformative vocals; The Cranberries' Dolores O'Riordan, noted for blending Celtic influences with alternative rock and redefining expectations for female rock vocalists; and PJ Harvey, recognised for her raw, cinematic vocal style that still carries a distinctly 1990s character today.