The success of these bands boosted the popularity of alternative rock and made grunge the most popular form of rock music at the time.
Grunge was also an influence on later genres such as post-grunge (e.g.: Creed and Nickelback) and nu metal (e.g.: Korn and Limp Bizkit).
He stated that while Nirvana drew on punk, Pearl Jam was influenced by classic rock and "sludgy, dark, heavy bands" such as Soundgarden, Alice in Chains and Tad had a sinister metal tone.
Grunge music has what has been called an "ugly" aesthetic, both in the roar of the distorted electric guitars and in the darker lyrical topics.
A number of factors contributed to grunge's decline in prominence.