A breakthrough album is an LP

LP album

The LP, or long-playing microgroove record, is a format for phonograph records, an analog sound storage medium. Introduced by Columbia Records in 1948, it was soon adopted as a new standard by the entire record industry...

 or CD by a band or musician previously only known in the underground

Underground music

Underground music comprises a range of different musical genres that operate outside of mainstream culture. Such music can typically share common values, such as the valuing of sincerity and intimacy; an emphasis on freedom of creative expression; an appreciation of artistic creativity...

 or indie scene of its given genre, which propels the group to mainstream attention and widespread fame and popularity. Examples include Janet Jackson

Janet Jackson

Janet Damita Jo Jackson is an American recording artist and actress. Known for a series of sonically innovative, socially conscious and sexually provocative records, as well as elaborate stage shows, television and film roles, she has been a prominent figure in popular culture for over 25 years...

's 1986 album Control

Control (Janet Jackson album)

Control is the third studio album by American recording artist Janet Jackson, released on February 6, 1986 by A&M Records. Her collaborations with songwriters and record producers Jimmy Jam and Terry Lewis resulted in an unconventional sound: a fusion of rhythm and blues, funk, disco, rap vocals,...

, Nirvana

Nirvana (band)

Nirvana was an American rock band that was formed by singer/guitarist Kurt Cobain and bassist Krist Novoselic in Aberdeen, Washington in 1987...

's 1991 album Nevermind

Nevermind

Nevermind is the second studio album by the American rock band Nirvana, released on September 24, 1991. Produced by Butch Vig, Nevermind was the group's first release on DGC Records...

, Red Hot Chilli Peppers's 1991 album Blood Sugar Sex Magik

Blood Sugar Sex Magik

Blood Sugar Sex Magik is the fifth studio album by American rock band Red Hot Chili Peppers, released on September 24, 1991. Produced by Rick Rubin, it was the band's first record released on Warner Bros. Records...

, Smashing Pumpkins's 1992 album Siamese Dream

Siamese Dream

Siamese Dream is the second album by the American alternative rock band The Smashing Pumpkins, released on July 27, 1993 on Virgin Records. The album fused diverse influences such as shoegazing, dream pop, grunge, classic rock, heavy metal, and progressive rock.Despite recording sessions fraught...

, Green Day

Green Day

Green Day is an American punk rock band formed in 1987. The band consists of lead vocalist and guitarist Billie Joe Armstrong, bassist and backing vocalist Mike Dirnt, and drummer Tre Cool...

's 1994 album Dookie

Dookie

Dookie is the third studio album by the American punk rock band Green Day. It was released on February 1, 1994 through Reprise Records. It was the band's first collaboration with producer Rob Cavallo and its major record label debut. Dookie became a worldwide commercial success, peaking at number...

, Alanis Morissette

Alanis Morissette

Alanis Nadine Morissette is a Canadian-American singer-songwriter, guitarist, record producer, and actress. She has won 16 Juno Awards and seven Grammy Awards, was nominated for two Golden Globe Awards and also shortlisted for an Academy Award nomination...

's 1995 album Jagged Little Pill

Jagged Little Pill

Jagged Little Pill is the third studio album by Canadian recording artist and songwriter Alanis Morissette. It was Morissette's first internationally released album, and her first studio album after the three year hiatus following her break with MCA Records. The album marked a shift from her style...

, Sublime

Sublime (band)

Sublime was an American ska punk band from Long Beach, California, formed in 1988. The band's line-up, unchanged until their breakup, consisted of Bradley Nowell , Eric Wilson and Bud Gaugh . Michael "Miguel" Happoldt also contributed on a few Sublime songs, such as "New Thrash." Lou Dog, Nowell's...

 's 1996 album Sublime

Sublime (album)

Sublime is the third and final album released by ska-punk band Sublime. Originally intended to be titled Killin' It, the band and record label agreed to substitute an eponymous title due to lead singer Bradley Nowell's death prior to the album's release...

, Korn

Korn

Korn is an American nu metal band from Bakersfield, California, formed in 1993. The current band line up includes four members: Jonathan Davis, James "Munky" Shaffer, Reginald "Fieldy" Arvizu, and Ray Luzier. The band was formed as an expansion of L.A.P.D.The band released their first demo album,...

's 1998 album Follow the Leader

Follow the Leader (Korn album)

Follow the Leader is the third studio album by American nu metal band Korn. The album was released on August 18, 1998, through Immortal/Epic. This was their first album not produced by Ross Robinson...

, Blink 182's 1999 album Enema of the State

Enema of the State

Enema of the State is the third studio album by American pop punk band Blink-182. Recorded at various locations throughout California with producer Jerry Finn, the album was first released on June 1, 1999 in the United States on MCA Records...

, Evanescence

Evanescence

Evanescence is an American rock band founded in Little Rock, Arkansas in 1995 by singer/pianist Amy Lee and guitarist Ben Moody. After recording private albums, the band released their first full-length album, Fallen, on Wind-up Records in 2003. Fallen sold more than 17 million copies worldwide...

's 2003 album Fallen

Fallen (Evanescence album)

-Critical response:Fallen has received generally mixed to positive reviews from music critics. Johnny Loftus of Allmusic scored the album three and a half stars out of five, and named it an AMG Album Pick, saying, "The album does include flashes of the single's PG-rated nu-metal...

, and Colbie Caillat

Colbie Caillat

Colbie Marie Caillat is an American pop singer-songwriter and guitarist from Malibu, California. She debuted in 2007 with Coco, which included hit singles "Bubbly", "Realize", and "The Little Things". In 2008, she recorded a duet with Jason Mraz, "Lucky", which won a Grammy. Caillat released her...

's 2009 album Breakthrough. Such albums usually are released through major labels, but this is not always the case.