NHK Kouhaku Uta Gassen (ＮＨＫ紅白歌合戦, "NHK Red and White Song Battle"), more commonly known simply as Kouhaku, is an annual New Year's Eve television special held on December 31 every year, and produced by Japanese public broadcaster NHK. It is broadcast live simultaneously on NHK General TV, BS4K, BS8K and NHK radio (nationally) and internationally on NHK World Premium and some overseas (mainly cable) broadcasters who buy the program. The program divides the most popular music artists of the year into competing teams of red and white. The 'red' team or 'akagumi' (紅組) is composed of all female artists (or groups with female vocals), while the 'white' team or 'shirogumi' (白組) is all male (or groups with male vocals).
《偶像學園 Planet！》是在學園場面等日常生活部分採用實攝演出，而以偶像身分進行活動的場面則運用動畫與 3DCG 方式來呈現的作品，本製作項目將以電視動畫與數位兒童卡片遊戲連動的方式推出。另外八位實攝演員也將組成偶像團體「STARRY PLANET☆」展開參與活動演出及線上影片等活動。
This program introduces Japanese traditional performing arts like dance, kabuki, bunraku.