Songstress
/ˈsɔːŋstrəs/
Definition 1 of 1
Pro Tip 1/3Gender Specific
The term 'songstress' is used exclusively for female singers, not male ones. 
The band's songstress impressed everyone with her vocal range.
Pro Tip 2/3Profession Emphasis
Use 'songstress' to emphasize that the woman sings professionally and not just casually or as a hobby. 
The songstress signed autographs after her performance.
Pro Tip 3/3Cultural Performance
The term is often associated with cultural or artistic performances, rather than just entertainment. 
The songstress wore a traditional gown for the recital.