Before starting the band Mindless Self Indulgence, james euringer launched a solo album in 1995, called Mindless Self-Indulgence, which he had produced by himself and was limited to 500 copies. Contrary to popular belief, this was not an album by the band Mindless Self Indulgence, however, Steve Righ? played guitar for the track "Bed of Roses".

Another large influence in the band's music comes from early 1980s culture. Frequently the music contains samples of early 80's hip-hop or rock, as well as Atari-style beeps and tones. Their second album as a band, 1999's Tight, was even allegedly mixed on Atari equipment. Many of Urine's dress styles consist of the juxtaposition of popular 1980s clothing or bastardized versions thereof.

Later in 1999, MSI launched the album Frankenstein Girls Will Seem Strangely Sexy, featuring 30 tracks that were sorted alphabetically. Kitty (Drummer) designed and ran the official site of MSI when the album came out.

After Frankenstein Girls Will Seem Strangely Sexy , Vanessa YT (Bass player) decided to leave MSI to start a family. Her replacement in the band was Lyn-Z (Bass player), who married My Chemical Romance's lead singer Gerard Way in September 2007.

Mindless Self Indulgence is distinguished from mainstream punk, however, by their incorporating lyrics about being gay and related topics into nearly all of their songs - even titling one of their songs Faggot. Also, Euringer and Steve, Righ? (Guitarist) possess wide vocal ranges, stretching from tenor to high falsetto. The band also has no qualms about using words deemed offensive by some, such as nigga (Jimmy Urine argues that he doesn't say the word out of anger, and often it is more or less used in the sense that it is used in the hip-hop world), and faggot heavily in many of their songs. Many critics have used their word choice to dismiss the band as juvenile.

And although this may be the case, with some songs being of a 'juvenile' subject and tone, they also use clever lyrics and stance to give meaning to songs, such as You'll rebel to anything, which is a song that talks about how punk culture is being exploited by misdirected youths as a way to be unique or get noticed.

In keeping with their confrontational posture, Euringer has been arrested for pulling his penis out of his pants and attempting to set his pubic hair on fire, allegedly succeeding on one such occasion. Other notable stage antics include him drinking his own urine, inviting audience members to punch him in the face and/or throw objects at him, making out with both genders during the show, and roaming through the audience after the set blaring hip-hop music from a boom box perched on his shoulder.

The band's energetic live shows have gained them much recognition. The band is known to stay after the show has finished, signing whatever fans want until not one person is left wanting an autograph. They also take photographs with all desiring fans. They have opened for a number of popular bands, including System of a Down, Korn, Staind, Sum 41, Mushroomhead, Insane Clown Posse, My Chemical Romance, and Rammstein. They have also played many large musical festivals including Voodoo Music Experience in New Orleans in October of 2003, as well as headlining the Mojave tent at the 2004 Coachella Festival, and the main stage of 2007's Give It A Name. They also headlined the second stage of the Projekt Revolution tour in Summer 2007.

Their DVD, called Our Pain, Your Gain, was released on September 11 2007, featuring one of their concerts in New York.

On 29th April 2008, their 8th studio album, If, was released. The standard edition contains 15 tracks, the deluxe edition has the same tracklist and a bonus DVD. The Clean version has 16 tracks, Uncle being the additional track. The International edition (UK version) has 21 tracks; 3S as bonus track and four Never Wanted To Dance remixes.

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Mindless Self Indulgence is an American synthpunk musical group formed in New York in 1997. Their music has a mixed style including punk rock, alternative rock, electronica, hip-hop, and industrial. Due to the style of their music lacking a definite genre, they coined the term 'Industrial Jungle Pussy Punk' to describe their music. Their group name is derived from a solo album that frontman, Jimmy Urine self-recorded in the mid-1990s.

The group was formed when Urine was joined by fellow musicians Steve, Righ?, Vanessa Y.T. (who was later replaced by LynZ) and Kitty. They have released four albums, two EPs, one live album, and one live DVD. Rather than signing traditional record contracts, the band has licensed most of their albums to record labels, retaining ownership of the music.

The group maintains a devout fanbase, and has opened for many well-known acts such as Linkin Park, System of a Down, Korn, Sum 41 and Rammstein. Notable bands who have opened for them include The Dresden Dolls, Rasputina, The Birthday Massacre, Tub Ring, Fake Shark - Real Zombie! and Dog Fashion Disco.

In January 2009 the band headlined the Kerrang! Relentless Energy Drink tour, though LynZ did not participate due to her pregnancy.