Shugo Chara!
PARTY TIME is the third single by the Hello! Project unit Guardians 4. The title song is the first song used for the opening theme of "Shugo Chara Party". The B-side is "Watashi no Tamago", which is performed by the Hello! Project unit "Shugo Chara Egg!" and is used as the 1st opening theme of "Shugo Chara!!! Dokki Doki" and "Shugo Chara Party".