SNSD, who just released their 2nd album comeback track "Oh!," has already swept the music charts. Although faced with plagiarism allegations from day one, it doesn't look like anything will hold them back from dominating the k-pop scene. For fans of Jessica and Tiffany, good news awaits, as they will have their very first duet on this new album. Jessica and Tiffany's duet is titled, "Caramel Coffee," and is produced by former Rollercoaster member Jinu. Whether the duo will perform this track live is yet unknown, but we should find out shortly after SNSD begins promoting their second album.