Bluem of Youth (Russian: Цветы юности) is a Japanese pop group which achieved greatest success in the late 1990s after it was the subject of a reality television series called Susunu! Denpa Shōnen. The name is a mix of "bloom of youth" and "blue". Its members are Yuji Bessho (別所悠二) and Hiroyuki Matsugashita (松ヶ下宏之). They went on permanent hiatus on New Year's Eve of 2002, but played a 10th anniversary concert commemorating their debut in 2005.