Group Taetiseo's member Taeyeon revealed her abs.

On MBC "Show! Music Core" aired on October 4, Taetiseo performed their song "Holler".

On stage, Taetiseo appeared in patterened outfits. Taeyeon in particular wore a crop top underneath her jacket, revealing her fit body line and abs.

"Holler" is a funky dance song about reflecting on yourself, deriving away from set repertoires and patterns and living freely.