Alt-Rock is a genre of rock music that emerged in the late s and early s.

It is typically more commercially accessible than other styles of rock music, and its fans are generally considered to be more mainstream. Despite its mainstream appeal, alt-Rock has remained largely underground. This is largely due to its often experimental sound, which is difficult to replicate on a large scale. However, alt-Rock is gradually becoming more popular, with bands like Radiohead, The Smiths, and Nirvana gaining a large following.