Girls' Generation's Taeyeon has revealed her shockingly skinny figure. Taeyeon showed off her workout on the 15th. She stretched her arms all the way up and showed her perfect posture by standing on her head. Taeyeon boasts a slim body with a sportswear that reveals the waist and belly, and a waist of one size causes surprise. In particular, Taeyeon's charm of reversal made the fans admire once again. On the other hand, Taeyeon recently appeared as the second vocalist of the Naul ⁇ Ballad Pop City ⁇ project and presented ⁇ Alone ⁇ . Taeyeon