Alt-Rock has been around since the early s and has gradually gained in popularity over the years.

It's a style of rock music that is often considered to be more experimental or alternative than mainstream rock. Alt-Rock bands often favor a harder, more aggressive sound than mainstream rock bands.

Some of the most well-known alt-rock bands include Radiohead, Muse, and Nirvana.

Abbey Road is one of the most famous alt-rock albums of all time. It was released in and is considered to be one of the greatest rock albums of all time.