United Kingdom, Nov. 14 -- A man was arrested for storming security barriers and embracing Ariana Grande at Singapore's Wicked: For Good premiere, and he has since "thanked" the pop star.

Johnson Wen, who is known as Pyjama Man on Instagram, took to social media to share a video of the shocking moment in Singapore, when he jumped a security barrier and rushed over to Ariana, before putting his arm around her.

Her Wicked co-star Cynthia Erivo has since been hailed as a heroine after she leapt to her protection and pushed Wen away, which has now gone viral.

Pyjama Man wrote: "@arianagrande @wickedmovie Dear Ariana Grande Thank You for letting me Jump on the Yellow Carpet with You [heart emoji]"

The over-excited fan was subsequently arre...