On May 7, the social network Threads spread many images and videos believed to record the scene of Hai Dang Doo appearing in a gathering using "laughing gas".
In the post, the video and image sharing account also directly mentioned the name of the organizers of the "Sao Nhap Ngu" concert - a program that Hai Dang Doo will participate in in the near future, and at the same time requested to verify whether the person appearing in the video is a male singer or not.
The clips and images quickly attracted the attention of the online community. Under the comments section, many viewers expressed surprise at the spreading images. Some opinions suggest that if the character in the video is really Hai Dang Doo, the incident may affect the image of the male singer in the context that he is about to appear at a large-scale program.

Before the wave of discussion, a reporter from Lao Dong Newspaper contacted Hai Dang Doo's management. A representative of the male singer said that the crew was surprised when these images appeared on social networks.
According to management, they do not know the origin of the clip and believe that this is an AI product whose content was cut and pasted to affect Hai Dang Doo's reputation.
We don't know who posted these images from. These are AI products, cut and pasted with the aim of harming Hai Dang Doo's image," said the management representative.
Reporters also contacted the organizers of the "Sao Nhap Ngu" concert, however, the organizers have not officially responded.
Hai Dang Doo's real name is Nguyen Hai Dang, born in 2000, known as a singer and rapper. Hai Dang Doo participated in a number of entertainment programs and web-dramas before being noticed in "Hello Brother" season 1.