A rock band is a group of musicians who play rock music, a genre that originated in the 1950s. Typically, a rock band consists of a lead vocalist, guitarists, a bassist, and a drummer. The music often features electric guitars, strong rhythms, and catchy melodies, appealing to a wide audience. Rock bands can vary in style, from classic rock to punk and heavy metal. Some famous rock bands include The Beatles, Led Zeppelin, and Nirvana. They often perform live concerts and create albums, contributing to the evolution of popular music and culture over the decades.