Loyal fans of the actress are calling for that a man who leaped a barricade and seized the celebrity during the recent Wicked: For Good debut be detained or deported from Singapore.
A circulating footage shows the Australian man bypassing media personnel and charging at Grande while the performers proceeded down a yellow carpet surrounded by onlookers.
Co-star Cynthia Erivo immediately wrested the surprised star away from Mr Wen, who was seen being escorted out of the premiere by guards.
Mr Wen shared on Instagram Thursday evening that he was "let go after being taken in", though official papers revealed that he was due to be present on Friday morning. It is not clear if he was charged.
This is part of a pattern for Mr Wen, who labels himself a "Notorious Troublemaker", has invaded a celebrity gathering. His Instagram feed includes videos of him disrupting other star-studded functions, including jumping on stage at Katy Perry's Sydney performance in earlier this year and in a comparable manner during The Chainsmokers concert in the area last December.
"Measures must be taken enforced against him as this is evidently a punishable act," commented an Instagram user, in a message to a video Mr Wen uploaded of his behavior.
"This appears to be a habit... why are you not imprisoned?" a different Instagram user wrote.
Numerous followers accused Mr Wen for "causing further distress" Grande, who had discussed experiencing trauma-related anxiety after a terrorist explosion at the conclusion of her May 2017 show in Manchester, claiming the lives of 22 people and harming many.
"After everything she's faced... including the Manchester attack, you considered it entertaining to rush the barrier?" commented a further comment on Instagram.
Several supporters also criticised guards at the premiere for not being vigilant enough; while different individuals called for social media platforms to block Mr Wen's uploads.
In footage spreading on the internet, Grande appeared startled when she was approached by the intruder. Her cast members Michelle Yeoh and Erivo can be observed reassuring her while Mr Wen was removed by guards.
Grande has not issued a statement on the situation, and the premiere activities proceeded as normal.
Many of fans had congregated in a mass of green and pink at the Wicked: For Good Asia-Pacific launch in a Singapore venue, including a number who had stood in line for as long as a significant duration before it commenced.
The motion picture, to be launched on 21 November, is the follow-up of a two-part adaptation of the popular stage show Wicked, which focuses on the surprising friendship between two distinct witches.
The show itself is a spin-off of the 1900 book The Wonderful Wizard of Oz.
Grande, who plays the character Glinda Glinda, was adorned in a light pink sequin dress at the event while Erivo, who portrays the wicked witch, wore a sleek black dress featuring roses.
They were joined by co-star Jeff Goldblum.
The previous installment, Wicked, was the highest-grossing film of the previous year in the UK, and received 10 award recognitions, securing two for best costume and set decoration.
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