Bruno Mars performed at Seoul's Jamsil Olympic Main Stadium as part of Hyundai Card's 'Super Concert' series on June 17 and 18. Many celebrities attended the event, including Song Hye Kyo, Han Ga In, Yeon Jung Hoon, Lee Je Hoon, Son Na Eun, Lim Young Woong, Jo Se Ho, Jo Kwon, and members of BTS, BLACKPINK, Seventeen, GOT7, Red Velvet, Pentagon, NCT, EXO, SHINee, and more.

Among the celebrities, Lisa garnered much attention as she was seen entering the stadium with an unknown man wearing black. His face was covered with the black bucket hat making it hard to determine who this individual is.

While the exact identity of the man hasn't been confirmed, many netizens are speculating that the man is Park Bo Gum given his outfit, which includes a Celine bag seen in Park Bo Gum's social media, and his posture.

Korean netizens commented, "A few days ago, Park Bo Gum posted a photo with the same exact bag," "The way he walks is similar to Park Bo Gum," "I don't think it matters if she went with Park Bo Gum. They're part of the same fashion label," "They became friends after being selected to be ambassadors for Celine," and "I probably would become friends with Park Bo Gum if I were Lisa too."