Girls' Generation's YoonA, 2AM's Seulong, and more showed up to celebrate the anniversary of 'Calvin Klein's flagship store in Gangnam!

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Calvin Klein held a celebratory event for the 1st anniversary of its flagship store in Cheongdamdong, Gangnam on the 28th. YoonA, Seulong, Seo In Guk, Jang Hyuk, Kim Ji Suk, Lee Chun Hee, Han Ji Hye, Kim Jung Eun, and Honey Lee looked fabulous as always at the event.

Many noticed that YoonA and Seulong were not shy to show their friendship in front of fans.

Check out photos from the event below!

[Thanks to everyone who sent this in!]