R&B singer Toni Braxton’s return to The Flamingo in Las Vegas has been pushed back for at least another month. A spokeswoman for Harrah’s Entertainment says the target date to resume “Toni Braxton: Revealed” at the Flamingo Las Vegas hotel is now June 6th. Braxton’s show has been dark since the singer was hospitalized overnight for chest pain on April 7th. The spokeswoman says she can’t comment about Braxton’s medical condition. The 40-year-old entertainer has been treated in the past for pericarditis, a viral inflammation of the heart. Braxton’s two-year run at the Flamingo Las Vegas is scheduled to end in August.