NCT's Haechan humorously revels in attending Bruno Mars' concert in Seoul in classic K-pop fan fashion.

 NCT's Haechan humorously revels in attending Bruno Mars' concert in Seoul in classic K-pop fan fashion.

NCT's Haechan amusingly expressed his enthusiasm for the most recent Bruno Mars concert in Seoul.

At Seoul's Jamsil Olympic Main Stadium on June 17 KST, Bruno Mars gave the first of his two concerts. A number of well-known K-pop stars attended, including members of NCT, WayV, EXO, SHINee, GOT7, The Boyz, Seventeen, TXT, and Pentagon.

NCT member Haechan shared photos of the occasion using a "etiquette shot" after it had taken place. An "etiquette shot" is a common K-pop fan trend in which a fan holds up an idol's photocard or concert ticket in front of food or drinks at a restaurant or cafe they visited either before or after going to that idol's event.

In this instance, Haechan, who is well-known for being a big fan of Bruno Mars, playsfully portrays the pop star as his own K-pop bias by holding up the concert poster and his ticket while seated at a hot pot restaurant. In a message to supporters, he makes the joke that "these are etiquette shots, right."

The images, along with a screenshot of Haechan's humorous query, were shared by one poster with the comment, "NCT's Haechan who saw the Bruno Mars concert and took evidence photos at his hot pot after-party... including "etiquette shots," among Korean internet communities. Fans responded to Haechan's fanboy outburst by writing, "Haechan is really so sincere when it comes to music," in response. "He's a real [K-pop fan trend] learner," and "He had a really good seat too, I'm so jealous."