What makes Boku wa Kimi ni Koi o Suru by Ken Hirai notable?

'Boku wa Kimi ni Koi o Suru' became notable for its chart performance, reaching high positions on Japanese music charts and further cementing Ken Hirai's influence in the J-Pop scene. The title track gained significant radio play and contributed to the ongoing popularity of ballads in Japan during this period. In 2009, Ken Hirai was already an established figure in Japanese pop music, known for his emotive vocal style. 'Boku wa Kimi ni Koi o Suru' marked a continuation of his successful career, following his previous hit album 'Utautai no Oka' from 2007, which solidified his status as a leading artist in the genre.