Girls' Generation's Hyoyeon will be making a not-so-surprise appearance on TaeTiSeo's final music program stage.

On June 3rd, Hyoyeon will be standing on stage to sing TaeTiSeo's "OMG" along with Taeyeon, Tiffany, and Seohyun. Ahead of her appearance, fellow member Sooyoung will also be joining TaeTiSeo to perform on their MBC 'Music Core' stage on June 2nd.

In related news, TaeTiSeo has maintained the #1 spot on SBS 'Inkigayo', KBS 'Music Bank', Mnet 'M! Countdown', and MBC Music's 'Show!Champion' for three consecutive weeks with "Twinkle".

Source & Image: OSEN