The late 1960's saw the emergence of fusion, a new style combining the jazz musician's improvisatory approach into a style employing musical forms, rhythms, and tone colors.

The late 1960's saw the emergence of fusion, a new style combining the jazz musician's improvisatory approach into a style employing rock musical forms, rhythms, and tone colors. This jazz style was known as Jazz- Rock Fusion. 
Example for an artist from this music period is Miles Davis.

You know time is of the essenceyeah i tried lil babyput your feelings to the side lil babyyou got too much pride lil babyi ain't have time yesterdaybut today i got time lil baby