Definition & Meaning of "rock on"

What's the origin and context of use of 'rock on'?

The phrase "rock on" has its origins in the rock and roll music culture of the 1960s and 1970s, particularly in the United States. As rock music gained popularity and influence, so did the phrase "rock on." It expanded beyond the confines of the music world and became a widely recognized expression of encouragement, support, and celebration in various contexts.