The announcement of the marriage happened last August 29th, the anniversary of his mother's death. This is the singer's second marriage as he was previously married to PUFFY's Yumi Yoshimura back in 1999 before the couple divorced in 2002.
Nishikawa is best known to most fans for performing theme songs for Mobile Suit Gundam SEED, D.Gray-man, Soul Eater, Rurouni Kenshin, and many more. Just recently, he performed the theme song of Kamen Rider Zero-One and Pokémon Journeys.
[Source: Anime News Network]