Girls’ Generation’s first unit group, TaeTiSeo, comprised of Taeyeon, Tiffany, and Seohyun, is open to a member change, SM Entertainment was quoted as saying.

According to OSEN, an official of SM Entertainment said, “The members of Girls’ Generation’s unit group are not permanently set. Depending on their song and album concept in the future, the members can definitely change. It will be another fun factor to see how the members change in the future.”

“That’s why we named the unit group using the first letter of each member’s name. Since the members can keep changing, we had to pick a name that’s easy to remember and not so confusing to the fans,” SME added.

In a lot of cases, unit groups come up with completely different names in order to distinguish them from their original groups. Super Junior’s K.R.Y was perhaps the only unit group so far to have a name involving each member’s initial.

Meanwhile, TaeTiSeo’s first mini album “Twinkle” will be released on April 29. The song is reported to be a medium tempo dance track, involving a lot of 70s-80s retro sound and funky soul beats. Watch the teaser by Taeyeon here and Tiffany here!