The Unnies were getting ready to perform their debut stage on 'Music Bank,' and they had gone to Taeyeon for some tips on perfecting their stage.�

The girls shyly relayed their greetings to Taeyeon, presenting her with a last-minute gift of their CD. Taeyeon, in turn, gifted them with her own CD.�

Kim Sook, noticing the reunion of Girls' Generation members Tiffany and Taeyeon, commented, "Aren't you two BFFs?" Taeyeon answered, "Yes. We're pretty much like a married couple."�

SEE ALSO: Taeyeon expresses her complaints about music shows

Taeyeon then added that she's a big fan of the Unnies, giving them tips on the appropriate stage manners and gestures. How nice of Taeyeon to take care of her juniors!�

Check out Taeyeon at the 1:09 mark below.