Are we just talking about singing here? Because then we have to get into Billie Holliday, Ella Fitzgerald, Aretha Franklin, Mariah Carey and Christina Aquilera and maybe people like Sarah McLachlan, Adele etc. Not all neccessarily my cup of tea, but deserving of respect.
Shout out to: Patsy Cline, Bessie Smith, Chrissie Hynde, Karen Carpenter, Liz Fraser, Stevie Nicks, Madonna, Carole King etc etc