• Johnson Wen, known as Pyjama Man, was removed from Lady Gaga's concert in Brisbane.
• Wen previously grabbed Ariana Grande at a Wicked premiere and served a jail sentence in Singapore.
• He has a history of disrupting celebrity events, prompting security concerns.
• Wen was disguised while attempting to attend the concert.
• He has been banned from re-entering Singapore following his antics.

Johnson Wen, also known as Pyjama Man, was ejected from Lady Gaga's concert at Suncorp Stadium in Brisbane on Tuesday. Videos surfaced showing him being escorted out before the event commenced. This incident follows Wen's previous charge of grabbing singer-actress Ariana Grande at the Asia premiere of Wicked: For Good in Singapore, for which he served nine days in jail for public nuisance, according to Channel News Asia, BBC, and South China Morning Post.

Wen's behavior has raised security concerns at major events. Despite not disrupting the Lady Gaga performance, he was removed due to his notorious history of charging at celebrities, which has included attempts during concerts by Katy Perry and The Weeknd. A statement from Suncorp Stadium confirmed they had been alerted about Wen's potential attendance in the interest of safety, according to BBC and South China Morning Post.

In a previous court appearance in Singapore, Wen acknowledged his disruptive behavior, saying he would "stop." Despite these claims, he was found to have continued his disruptive antics, demonstrating a pattern of attention-seeking behavior, as noted by a Singaporean judge during his sentencing, according to Channel News Asia and BBC.