These outfits are the same as the white ones with the glittery spots only these here have a light blueish tint.
The first pic is quite big by News Zum
The next batch of photos is by Star Today
Some Sohee pics by Suhroso
Photos from backstage
Some backstage pics from Show! K Music
And photos from the recording of Music Bank. Credit to KBS
One more small pic from the recording as seen from the audience