Girls' Generation's YoonA asked fans to make sure to listen to Taeyeon's solo debut track "I". 

YoonA posted the above photo to her Instagram on October 9 with the message, "Going to a photo shoot. Let's listen to 'I' during nice weather like this. Yoongstagram on Korean Alphabet Day as well." The Girls' Generation member has earbuds in and looks as if she's enjoying her group leader's new song. 

Have you been enjoying Taeyeon's "I"?