Australia’s Daily Telegraph reports that audience members saw the 64-year-old fall face first off the stage and hit his head.
Buffett was in his bare feet as he walked along the stage, making his farewells, TMZ’s Harvey Levin described to KNX 1070.
Buffett’s manager then took the stage and urged fans to leave the auditorium, the Hordem Pavillion.
The singer was brought to Sydney’s St. Vincent’s Hospital.
Wednesday night’s concert was Buffett’s fifth and last in Sydney on his current tour.
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