Once when she was recording a solo Taeyeon did not sing well and she could not reach the high notes. She tried many times but it was all the same. She cried. Everyone was shocked to see Taeyeon crying. Tiffany, who couldn't alk at the time due to injuries in her left leg wanted to walk towards her and comfort her but Hyoyeon stopped her from doing so. Taeyeon said that she didn't do well and cried because she was worrying about someone.