Taken from : http://www.allkpop.com/index.php/full_story/snsds_jessica_and_shinees_onew_get_together_one_year_later/
On Girls Generation / SNSD’s 2nd mini album, “Tell Me Your Wish (Genie)”, there's a track called “One Year Later” which has been said to be a duet between SNSD’s vocalist Jessica and SHINee’s leader, Onew.
Both are known for their powerful vocals but the question is, will the two voices blend together well? I’m sure it will because if it didn’t this duet with the two probably wouldn’t exist.
The full mini album will be out on the 25th so be sure to check out the duet by buying the mini album.
And in other news, the male voice in "Tell Me Your Wish (Genie)" actually isn't Micky Yoochun of DBSK/TVXQ (very busy in Japan), but its is Yoo Youngjin, whom apparently is an SM Entertainment producer who's voice also featured in SHINee's "SHINee World".