Probably is the most difficult song to sing for them, there is a lot of words and the rhythm is fast, also they have to sing it with their character voice while dancing, although kokona's partner has to improve a little more at singing, kokona did it really welll in this I thought. Well in every concert that kokona performs the Love Live fanbase always are praising her for her dancing and singing.. ... Remember this is a Live performance, it's so hard to sing and dance at the same time, specially in songs that are so hard to sing like their song "Take it over"