SNSD's Seohyun may be working with R&B singer Yoon Gunon his upcoming new single. On February 9^th, the Brown Eyed Soul singer tweeted "I included a pure and clear ringing voice of a young lady," and then added a picture of sweet potatoes

On that very same day, SM's Facebook page displayed an elusive statement. , "Girls' Generation's maknae Seohyun has a fun collaboration ready. Are you excited? With the owner of that red neck-warmer sitting on the window frame...." Care to share a thought?