Robbie pushed off stage

LONDON, England -- Pop star Robbie Williams was pushed off stage in front of thousands of fans in by a member of the audience as he performed in Germany, a spokeswoman for the singer said Thursday.

The incident happened Wednesday night at Stuttgart's Schleyerhalle stadium.

"The guy ran on stage and pushed Robbie off," Williams' spokeswoman told Reuters news agency. She added that the person, believed to be a 20-year-old man, was "mentally unstable."

Reuters contributed to this report.

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