The 'Unnies' Slam Dunk' members visited Taeyeon in her waiting room on the show's July 22 airing.

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."

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.