Tiffany has revealed the mystery two in her photo.
She'd released a photo of the backs of 3 girls, and now it's been revealed - they were of herself, Sooyoung, and Hyoyeon. It looks like it's a mini-Girls' Generation reunion for Tiffany's "Teach You" MV.
Tiffany Young has partnered up with fashion brand 'H&M' for a global fashion & music campaign, with Tiffany and her new track starring as the face of 'H&M's fall campaign. Tiffany's full "Teach You" single and MV will be out on September 28.