Answer:
Rock festivals were prevalent.
Step-by-step explanation:
In twentieth-century music, there were a lot of genres, such as blues, rock and roll, jazz, punk, hard rock, heavy metal, electronic music, disco, glam rock... All of them have their public and have influenced not only on music, but on art, design of clothes, and some of the songs sing about historical events and war. With the rock music came rock festival. One of legendary is Woodstock, held in 1969. There is information that there were nearly 500 000 people. That was legendary with a lot of musicians. One of the grates moments in rock history was performing Bohemian Rhapsody, in Montreal, by Fredy Mercury. Now there are many festivals worldwide.