Rihanna is fine after looking tired at concert

Don't go worrying about Rihanna -- she'll be fine after reportedly being "on the verge of collapse" during a concert in Sydney on Friday, E! Online says.

A fan-shot video shows the Disturbia singer hunching over a little bit and walking offstage after singing a duet for Umbrella with Chris Brown (video above). Since she left the stage before the end of her last verse, that must mean she's on death's door, right? Well, maybe not.

"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 rep told E!. "She is perfectly healthy and will be at her show tomorrow."

It's always great when gossip hounds declare someone is out of shape, dying, on drugs or otherwise a mess because they get a little short of breath and need to sit down after a performance. Let's see you jump up and down onstage for almost three hours under hot lights while shouting at the top of your lungs and see if you don't need a sandwich and a nap.

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