^Raiu answered your question. The girl with the short lighter hair (on this photo, left) is Chiaki Ito. In the PV and in this picture the one with the long dark hair is Misako Uno. In the PV Chiaki has short dark hair. At the moment their look is like this:
Misako Uno=long dark hair.
Chiaki Ito=short light hair.
Watch the CM and Making of for that bed thing with Chiaki and Misako
here.
Saitama Super Arena THIS weekend!!! *yay* Buzz Communication Tour will be shown on WOWOW, too. (PayTV) It will be the concert on the 26th. I'm so happy for them.