History of R n B rock and hip hop rock music. By amysneddon Jan 1, 1940 R n B started, Louis Jordan topped the charts Dec 24, 1971 "Walk this way" - Aerosmith, Hip hop rock Jan 1, 1981 Hip Hop started, KIIS realised the song " All hell's breaking loose" Dec 24, 2001 Michael Jackson - "Liberian Girl" Hip Hop Rock Dec 24, 2003 Alessia Keys - Karma R n B rock Dec 24, 2005 "Who knows who" The streets