Roberta Flack, the songstress and sometimes-actress, cut short an appearance Friday night at New York’s famed Apollo Theater because of illness. She was taken to Harlem Hospital.

The 81-year-old Flack, best known for her monster 1970s hit Killing Me Softly, was appearing at a benefit for the Jazz Foundation of American when she fell ill.  She exited the stage on her own.

No immediate update on her condition was available.

Flack has appeared on numerous TV shows and supplied music for the soundtracks of countless films and television spots during her long career. In addition to Killing Me Softly, her hits include The First Time Ever I Saw Your Face and Set the Night to Music.