The show, “Toni Braxton: Revealed,” at the Flamingo Las Vegas had been dark since the 40-year-old entertainer was hospitalized April 7 with what hotel officials said at the time was a complaint of a chest pain. The show had been scheduled to resume June 6.

Deanna Petit, a spokeswoman for Harrah’s Entertainment, said she could not comment on the singer’s current medical condition. Braxton has been treated in the past for pericarditis, a viral inflammation of the heart.

Braxton is a six-time Grammy winner for songs including “Un-break My Heart.” Her two-year run at the Flamingo Las Vegas hotel is scheduled to end in August.