Tip from Moshikiss
Thanks so much for the tip!
For the Japanese The Boys album photos, SNSD's Hyoyeon wore Yves Saint Laurent Halter neck crepe and chiffon jumpsuit from their F/W 2011 collection.
You can pick it up here for some insane moolah.
--Koko
Credits: Moshikiss, YSL, mytheresa, sment, nayutawave