The Shortest K-Pop Outfit Seen in History?

Taehee from girl group Delight's definition of short is this:

A.KOR's Daya and Taehee's cover of Park Boram's 'Beautiful'

In case you missed it,  Doo Republic uploaded the cover video of A.KOR 's Daya and Taehee of Park Boram 's ' Beautiful .&...