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'Entertainment Relay's PD Ko Kook Jin tweeted the photos above, "Guerrilla date with Lee Jong Suk!! This is the most number of citizens in Hongdae I've seen recently! The new and challenging interview this Saturday! I'm a guy, but why do I think he's pretty?" and "In the 10 degree cold weather, the most number of fans who came out! Thank you?."

It was hard not to notice Lee Jong Suk who showed off his new blonde hairstyle and braved through the cold weather with fans.

For the lucky fans in Korea, check out Lee Jong Suk's new film 'Young Blood' ('Blood Boiling Youth') in theaters when it premieres on January 23. Also check back in with allkpop this weekend to catch Lee Jong Suk's guerrilla date!