2Ne1 will perform at the 2011 Seoul Tokyo Music Festival on November 9, 2011. It will be held at the Saitama Super Arena in Japan.
Source: http://k-pop-event.com/pc/artist.html
Info: 2NE1 to Perform at the 2011 Seoul Tokyo Music Festival
October 20, 2011
oh-dara.com 
Comments on: "Info: 2NE1 to Perform at the 2011 Seoul Tokyo Music Festival" (3)
2NE1 HWAITING!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
sad..there’s no bigbang…nweiz, happy that dara will perform on the same day with her dog poop…
AGAIN,2NE1 WILL BE PERFORMED AT THE MUSIC FESTIVAL..GO.GO 2NE1 THE BEST