The band took its name from a 1950s slang phrase meaning "square," but is often mistaken as a reference to the sex position, "69". The slang phrase "L7" can be heard in the classic Sam the Sham & the Pharaohs song "Wooly Bully" ("Let's not be L7, come and learn to dance..."), and in the Rick James song "Bustin' Out" ("L7- just a little too damn straight...").
In 1991, the band formed Rock for Choice, a Pro-Choice women's rights group which was supported by other prominent bands of that era, including Pearl Jam, Red Hot Chili Peppers, Nirvana, and Rage Against the Machine. Rock for Choice still exists and organizes concerts today. 
Their 1992 third album Bricks Are Heavy, produced by Butch Vig, was featured in Rolling Stone's May 1999 list of 'Essential recordings of the 1990s', and is widely considered their classic.
L7's fourth album, Hungry for Stink, was released in the summer of 1994 during their Lollapalooza tour, where they shared the stage with Green Day and Nick Cave, among others.
Jennifer Finch left the band during the recording of their next album, so Sparks and Greta Brinkman played bass on their fifth album The Beauty Process: Triple Platinum, after which Gail Greenwood, (formerly of the band Belly) became the bassist. The band's most recent album, Slap-Happy, was released in 1999 and did not chart on either side of the Atlantic. Greenwood then left the band and was replaced by Janis Tanaka, formerly of the San Francisco band, Stone Fox. (Janis would later go on to play bass for the singer Pink). Gail Greenwood would later play with the singer Bif Naked).
However, by 2001 the band was no longer touring. According to the band's website: "L7 are on an indefinite hiatus. We know that's vague, but that's just the way it is. The future of the band is a bit up in the air at the moment." L7 appears to be defunct for all practical purposes, as Donita Sparks is currently pursuing her own solo career, along with drummer Dee Plakas and two other guitarists in the band Donita Sparks and The Stellar Moments. Jennifer Finch is working in a punk-rock group called The Shocker.
In the UK, the band are most famous for an appearance on the popular late-night entertainment programme The Word, in which Sparks pulled her pants down to reveal her pubic hair. During a live show in London in 2000, the band offered a one night stand with Dee Plakas as a raffle prize; the winner claimed his prize of sex with her on the tour bus. L7 was also banned from the Christian Coalition.
| Year | Title | Label | Notes |
| 1988 | L7 | Epitaph Records | Debut album |
| 1990 | Smell the Magic | Sub Pop | Reissued in 1991 with three extra songs |
| 1992 | Bricks Are Heavy | Slash Records | Reached #1 on Billboard Heatseekers |
| 1994 | Hungry for Stink | Slash Records | Reached #2 on Billboard Heatseekers |
| 1997 | The Beauty Process: Triple Platinum | Slash Records | First album without bassist Jennifer Finch |
| 1998 | Live: Omaha To Osaka | Man's Ruin Records | Live album |
| 1999 | Slap-Happy | Wax Tadpole Records | Final studio album |
| 2000 | The Slash Years | Slash Records | Compilation of popular songs from 1992-1997 |
| Year | Title | From album |
| 1990 | "Shove" | Smell the Magic |
| 1992 | "Pretend We're Dead" | Bricks Are Heavy |
| 1992 | "Everglade" | Bricks Are Heavy |
| 1992 | "Monster" | Bricks Are Heavy |
| 1994 | "Andres" | Hungry for Stink |
| 1997 | "Drama" | The Beauty Process: Triple Platinum |
| 1997 | "Off the Wagon" | The Beauty Process: Triple Platinum |
| 1999 | "Freeway" | Slap-Happy |
| 1999 | "Mantra Down" | Slap-Happy |