SEOUL, Jan. 22 (Yonhap) -- K-pop act Gugudan released new teaser photos for its upcoming single album "Act.4 Cait Sith."
The nine-member team uploaded two group photos, named "Day" and "Night," on its Twitter account on Jan. 22. The singers were dressed in all white in the Day photo, emphasizing purity and innocence, while the Night version featured the ladies rocking black attires and long boots.
"Cait Sith" refers to a feline fairy creature from Celtic mythology, which became popular in pop culture through the character in the "Final Fantasy" video game franchise. The track for the new album is titled "The Boots."
Gugudan debuted in June 2016 through the EP album "Act.1 The Little Mermaid" and became one of the fastest-rising new acts in K-pop last year. The group released its follow-up EP "Act.2 Narcissus" and single album "Act.3 Chococo Factory" last year.
"Act.4 Cait Sith" will be released at 6 p.m. on Jan. 31.