From Wiktionary, the free dictionary
From soulster + -ess.
soulstress (plural soulstresses)
- (informal, music) A female soulster.
1994 August 5, Peter Margasak, “Spot Check”, in Chicago Reader[1]:Chicago-bred new-jack soulstress Chantay Savage performs material from her just-released debut Here We Go (RCA).