as an American rock band that was formed by singer/guitarist Kurt Cobain and bassist Krist Novoselic in Aberdeen, Washington in 1987. Nirvana went through a succession of drummers, the longest-lasting being Dave Grohl, who joined the band in 1990.
In the late 1980s Nirvana established itself as part of the Seattle grunge scene, releasing its first album Bleach for the independent record label Sub Pop in 1989. The band eventually came to develop a sound that relied on dynamic contrasts, often between quiet verses and loud, heavy choruses. After signing to major label DGC Records, Nirvana found unexpected success with "Smells Like Teen Spirit", the first single from the band's second album Nevermind (1991). Nirvana's sudden success widely popularized alternative rock as a whole, and as the band's frontman Cobain found himself referred to in the media as the "spokesman of a generation", with Nirvana being considered the "flagship band" of Generation X. Nirvana's third studio album In Utero (1993), challenged the group's audience, featuring an abrasive, less-mainstream sound.
Bad Religion is a punk rock band that formed in Los Angeles in 1978. Their current line-up consists of Greg Graffin (vocals), Brett Gurewitz (guitar), Jay Bentley (bass), Greg Hetson (guitar), Brian Baker (guitar) and Brooks Wackerman (drums). Gurewitz is also the founder of the label Epitaph Records, which has released almost all of the band's albums. They are often credited for being involved in the revival of punk rock and inspiring several subsequent punk bands during the late 1980s, as well as influencing a large number of other punk and rock musicians throughout their career. Bad Religion is also particularly known for their use of soaring 3-part vocal harmonies (which they refer to in their album liner notes as the "oozin' aahs"), sophisticated and intellectual lyrics, and political or religious commentary. Their lyrics often relate to matters of social responsibility.