LOS ANGELES, California (X17online) - Rihanna's representatives are denying internet reports that the singer collapsed during a performance in Syndey, Australia.

A widely seen video shows the "Disturbia" singer apparently becoming ill and leaving the stage during a performance with Chris Brown. But a spokesperson for Rihanna downplays the incident.

"It was very hot at the venue, so after Rihanna's set was over, she went off stage to sit down, catch her breath and have some water," her publicist confirmed to X17online. "She is perfectly healthy and will be at her show tomorrow."

Rihanna is scheduled to perform again tomorrow night in Syndey.