HAPPY♡ANNIVERSARY is a musical group known for their distinctive approach to japan music. Throughout their career, HAPPY♡ANNIVERSARY has released several notable projects including 月曜日なんか来なきゃいいのに, 今日は私があなたの世界に落ちちゃった日 / キミイコール, 届け♡I LOVE YOU / EndlessParty, 冬花火 / 大好きな君と、聖なる夜, among others. Each release has contributed to building a cohesive artistic identity while exploring new sonic territories. HAPPY♡ANNIVERSARY continues to be an active presence in the music industry, contributing to the evolution of contemporary music.