October 28, 2011 09:30 AM

Marie Osmond was admitted to a Las Vegas hospital Wednesday night after her voice started to give out during a performance with her brother Donny, her rep confirms to PEOPLE.

Complaining of tightness in her lungs, Osmond, 52, was diagnosed with a bad case of bronchitis and released from the hospital after a couple of hours, the rep told Reuters.

The singer – and former Dancing with the Stars contestant – seemed to have a sense of humor about the ordeal.

RELATED: Marie Osmond Remarries Her First Husband

“So the allergies went into a bronchitis,” Osmond Tweeted Thursday. “Didn’t realize it until I went to hit the high notes last night on stage. Pie Jesu was kinda P-U.”

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