Girls' Generation Sooyoung's wild performance shocked everyone while filming of the JTBC 'Girls' Generation and the Dangerous Boys'. 

On the episode that aired on the 15th, Girls' Generation invited the boys to karaoke.

Girls' Generation members were not shy about singing to the machine as soon as the songs came out. Especially Sooyoung who brought up the mood of the party by going wild and just having fun.