Hondurans are mostly mestizos, ie a mix between Native amerindian and European. A good amount have Black in them as well. N.B. Mexico is just another latin american country calling Hondurans 'Mexicans' would be totally incorrect.
But RPM/Kent retained many unreleased King masters, and over the years the company released them, thus forcing King to compete with himself. The most successful of these releases was Rock Me Baby, a blues King wrote with Joe Josea and recorded in about 1958. The lyric is a basic plea for sex -- Rock me all night long -- while the music provides a blues structure that allows King room for biting guitar work.
The most widely held belief is that the first rock'n'roll single was 1951's Rocket 88, written by Ike Turner, sung by Jackie Brenston (the saxophone player from Turner's backing band The Kings of Rhythm), and recorded by Sam Phillips, who later went on to found Sun records and discover Elvis Presley.