A K-POP flash mob performance was held to the applause of 20 thousand spectators in 'London Korea Festival', held under the auspices of Korea Culture Centre UK, Korea Culture and Content Agency, and Korea Tourism Organization Launching as a special event with PSY's video message just before the performance by f(x), the flash mob performance included hits like PSY’s ‘Gangnam Style’, 4minute’s ‘Crazy’, f(x)’s ‘Red Light’, and ‘Bang Bang Bang’ by BIGBANG. The team also engaged in promotion activities for the festival in double-deckers around the major sights like Big Ben or Tower Bridge, and also held a K-POP dance workshop for the festival with a major Korean B-boying team, ‘Jinjo Crew’.