Final answer:
The now-standard rock band lineup of 2 guitar players, a bass player, and a drummer evolved from the pioneering efforts of artists like Bill Haley and His Comets and was later popularized by the likes of Chuck Berry and The Beatles.
Step-by-step explanation:
Rock Band Lineup Origins
The now standard rock band lineup of 2 guitar players, a bass player, and a drummer was pioneered by several artists in the rock and roll genre. While there isn't a single artist who can be credited for this formation, Bill Haley and His Comets with their hit "Rock Around the Clock" were among the first to launch into rock and roll, setting a standard for band configurations that would include the described lineup. Moreover, artists like Chuck Berry and groups like The Beatles would later popularize and solidify this lineup through their electrifying performances and substantial contribution to the rock and roll genre.
Chuck Berry in particular was known for his dazzling guitar solos, which may have helped establish the importance of guitar in rock bands. In addition, the genre itself was a combination of electric instruments with the sounds of gospel, blues, country, jazz, and R&B, crafting a new sound that resonated with audiences and cemented the rock band lineup that we know today.