A rock album is a collection of music tracks that typically features electric guitars, bass, drums, and vocals. This genre emerged in the 1950s and has since evolved into various subgenres, including classic rock, punk rock, and alternative rock. Rock albums often explore themes of love, rebellion, and social issues, appealing to a wide audience. Albums are usually released in physical formats like vinyl or CDs, as well as digitally. Notable rock albums, such as The Beatles' "Abbey Road" and Pink Floyd's "The Dark Side of the Moon", have had a significant impact on music history and culture, influencing countless artists and fans worldwide.