updated 04/14/2008 AT 12:00 PM ET
•originally published 04/14/2008 AT 1:25 PM ET
Toni Braxton’s recent hospital visit has resulted in her canceling the rest of this month’s performances of her Las Vegas show.
The showroom at the Flamingo Las Vegas, where the 40-year-old has been headlining in Toni Braxton: Revealed, shall remain dark this week while Braxton undergoes additional medical tests following her April 7 hospitalization for chest pain, the Associated Press reports.
She is due to return to the show May 6. Until then, the Flamingo will offer refunds for the canceled shows.
The six-time Grammy winner – who on a previous occasion was treated for hypertension and pericarditis, a viral inflammation of the sac surrounding the heart – was released from the hospital April 8 after undergoing precautionary tests at a Las Vegas medical facility. She was said to be resting at home.