'kurokute utsukushii'.
The japanese word of song is "uta"and beautifull is"ii"...so you can say it in japanese..."ii uta"
penis
to say beautiful in Japanese is 美しい and it is read like utsukushii hope this helps :)
Azaki
kuraihana
kuraitaiyo
kuraikokoro
ダークデーモン
Utsukushii [美しい] means beautiful
kirei no tsuki
The phrase 'dark storm' would be 暗い嵐 (kurai arashi) in Japanese.
'Beautiful demon' would translate to 美しい鬼 (utsukushii oni) in Japanese.