Johnson Wen (26), the Australian fan who attacked Ariana Grande during the premiere of ‘Wicked: For Good’ in Singapore, is also banned from other pop star concerts. Wen previously jumped over a fence and stormed Katy Perry’s stage. After the incident with Grande, the Australian spent 9 days in a cell and was eventually deported from Singapore. Lady Gaga’s security takes no risks and removes the man from the hall before the start of the concert.

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