Girls' Generation-TTS, a subunit of South Korean girl group Girls' Generation, will release a Christmas album next week, its agency said Wednesday.

"Dear Santa" will hit digital stores at midnight next Monday, S.M. Entertainment said.

(SM Entertainment)

Girls' Generation-TTS is comprised of Taeyeon, Tiffany and Seohyun.

The upcoming album comes more than a year after the trio released the EP "Holler" in September 2014. It's also their first Christmas album, the agency noted.

"Girls' Generation has successfully released its fifth album this summer and Taeyeon's first solo album 'I,' which came out this fall, is among the top sellers on online charts," S.M. said. "This Christmas album will conclude 2015 as the Year of Girls' Generation." (Yonhap)