"I remember every bit of our debut stage. �Everyone didn't know what was going on and we were very nervous too. �We have all come a long way and we�were able to make it because we enjoyed the ride. �If I were to go back to that time again, I don't think I would necessarily try to change anything."

SEE ALSO: "They're so good, this is what K-pop should be like," Girls' Generation's past live performance gains spotlight after 8 years

All new concept photos were shown of Sunny in a classic ponytail and dressed in shiny outfits.

The comeback is so close and all the individual concepts have been released. Stay tuned for more updates.

Song preview of "Fan":

Teaser photos: