Your search for "diamond rush promotion (ja)" revealed the following:

NINJA MAN [Step Aside]

NINJA MAN [Step Aside]

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ID No. 216903 Label RYTHEM TRACK (JA) Production JA Genre ReggaeAfter90s / Male DJ Condition EX- Track Rush Dem Soundclip* '91 Bad Tune Shaggy Wonder「Rush Dem」同オケ

JUNIOR REID [Junior Nature (Human Nature)]

JUNIOR REID [Junior Nature (Human Nature)]

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ID No. 234682 Label YOUTH PROMOTION (JA) Production YOUTH PROMOTION Genre Reggae80sLate / Male Vocal Condition EX- Track Solomon SoundclipEarly 80's Big Classic/J.Reidの初期代表曲の１つ/M.Jackson"Human Nature"のフレーズを引用