Singer and actor Seo In Guk is gaining attention for his proof shot of him riding the subway!

Seo In Guk on the 6th wrote on his me2day, "A while ago, I took the subway for the first time in a while," and posted the photo above as proof.

In the photo, Seo is seen doing the victory pose and smiling in front of the Nakseongdae Station sign on Line 2 of the Seoul Subway.

Internet users who saw his picture commented, "It seems that Seo In Guk rides the subway," "Where can I go to see you," and "What is he doing at Nakseongdae Station."

Meanwhile, Seo In Guk is starring as Yoon Yun Jae and working alongside A Pink's Eunji in tvN's new drama "Reply 1997."