UP iz one of the hottest groups in Korea. With two members that are young and the original memebers of UP, they hit it off with Booyo Booyo. The group haz two guyz and 2 gurlz. Don't mistake the other one fo a guy. Booyo booyo hit the #1 spot in 2 and a half months since their release of their second album.Here r some pics of them.One of things that go with their coordination thing are the little kiddy stuff they carry along. Mo on the way. Wait till the pics finish loading.