ohh!! thank you ruixiong for all the info!!
i heard that BOUNCEBACK is no more producing the girls, so they now are with a different song composer since "grow into shinin' stars", and that's why their sound has changed now... they were more like pop+r&b and some pop very much "a-la-dream" like... and now they're not very impressive as much as how they were with LolitA or Love like candy floss... anyways, i love grow into shinin stars, but i dunno how the fans reacted about Sky... i think it's a very average song... well, its just "ok"... because it's obvious they can do much better... =/