^ I'm not too sure about the rest but SNSD are friends with KARA (well, maybe not all members of KARA... but I know that SNSD talk a lot to Nicole) and Wonder Girls (once again, maybe not all members but Taeyeon seems really friendly to them, she even went to sit and talk with them on an award show & also Sunmi is like a Taeyeon fangirl
) I definitely bet all girl groups all admire each other.
