Your search for "sir jj" revealed the following:

CARL DAWKINS [Baby I Love You / Hard Times]

CARL DAWKINS [Baby I Love You / Hard Times]

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ID No. 218909 Label SUPER OLDIES (US) Production Sir JJ Genre Rock Steady / Male Vocal Condition VG Soundclip*ロック・ステディの大名曲。他にも「 don't waana be rude boy」「 Copasetic」「Satisfation」が大ヒットした。

ROY SHIRLEY [Dance Of Love]

ROY SHIRLEY [Dance Of Love]

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ID No. 222927 Label BLANK( DEVIL) (JA) Production Sir JJ Genre Early Reggae / Male Vocal Condition VG Track Dance Up The Reggae / Musical Priest Soundclip*アップテンポでホットなボーカル、喉にバネが入ってるかと思うくらいのビブラート。