Final answer:
From the 1960s, music bands typically a. took group names, representing a shift from the earlier focus on individual star performers to promoting the band as a single entity.
Step-by-step explanation:
From the 1960s on, groups predominantly took group names rather than being named after their front person or being associated solely with one individual. This trend was a shift in the music industry that promoted the idea of a cohesive band as a single entity, rather than highlighting a single star vocalist. For example, Bill Haley and His Comets were among the first to introduce rock and roll, and they had a group name despite Bill Haley being a prominent figure. Similarly, Chuck Berry, although a dazzling solo performer, is an example of the individual star that was more common before the 1960s.