Girls' Generation's self-promotion is becoming a hot topic on the internet as pictures and fan cams were uploaded that show the girls spray painting on the side walls of an old SM building.  

The members went to the SM Entertainment building located in Gangnam's Apgujeong on February 25 and had a fun time engaging in some graffiti.  They left their signatures and also drew out the logo of their 4th mini-album 'Mr.Mr.'

In addition, the girls greeted the fans who came out to take pictures and videos or just gaze in awe.  They also took selcas to capture this fun moment forever!  Check out the fan cam and some pictures

http://youtu.be/fachW1_plfQ