A photo showing SHINee's Key and KARA's Nicole enjoying their birthday party has been revealed.

Key wrote on SHINee's official Me2Day page on Thursday, "Nicole and bum's birthday party. It's really fun. Let's have a bigger party next year. Everyone come visit!" and included a picture. 

In the picture he revealed, Key and Nicole are standing in front of a cake while smiling brightly.

Key's birthday is September 23 and Nicole's birthday is October 7, which is why they celebrated a joined birthday party. On various TV shows, Key and Nicole shared that they are very close since they are the same age, both born in 1991.