are all those songs new songs or where they OST songs or something like that?
I have to say...those are KARAs best songs so far lol
Those are their solo songs they performed during KARASIA, but in Japanese. In all shows (even in Japan) they performed in Korean, though.
According to CDJapan, the limited CD+DVD edition comes with both Korean and Japanese music videos, but the official tracklist does not mention this at all! Hopefully they also shot the videos in Korean.
Also, Pandora ranked 15h place on Oricon:
5,158 KARA(パンドラ 104→15 6,077)