There are at least four artists performing under this name:

1. Infinite's member Kim Myungsoo (김명수)
2. The solo project of Hiroyuki Usui (臼井弘行)
3. The French artist L (Raphaële Lannadère)
4. Los Angeles based darkwave/ebm/industrial project

1. 엘/L is Infinite's Kim Myungsoo (김명수; born March 13, 1992) stage name, is a South Korean singer and actor. He debuted as a vocalist of boy band Infinite in 2010 and its sub-group Infinite F in 2014. He left Woollim Entertainment in August 2019 but will continue to be a member of the group. Debuted as a soloist in February 3rd of 2021.

2. L is the solo project of Hiroyuki Usui (臼井弘行) (guitar, vocals, vibes, harmonium, bass, drums, cello, field recordings, didgeridoo). His only album "Holy letters" was recorded in 1989-1990. On it, he blends delicate folk, psychedelia, and experimental sounds into a mostly subdued but undeniably glowing suite. The layered but careful instrumentation on tracks like the epic "Holy Letters" and "Troll" backs the alternately plain-spoken and crooning vocals perfectly. Odd touches like snatches of throat singing and bowed vibraphone leap out of the mix at just the right time. There are overt references to the blues (the first track is an oblique cover of Blind Willie Johnson's "Cold Was The Ground") - but other than the occassional slide guitar touch, the connection is overwhelmingly in the timeless feeling and atmosphere.
"Holy Letters" was self-released by Hiro in 1994 (in an oversized package including the CD and a 7", on Holy Castle), primarily to be given away to friends. A handful of copies were sold via Tokyo's Modern Music/PSF operation in Japan and by Forced Exposure in the US, but other than that, it disappeared completely. Hiroyuki Usui's name pops up in several intriguing places in the apparently still underdocumented Japanese underground lexicon. While he now concentrates mostly on didgeridoo (and his profession of garden design), he once played drums in Fushitsusha (late 70's/early 80's), A-Musik (with the legendary vocalist Phew), Marble Sheep, and several other true-underground outfits.
In 2003-2004, the American VHF label stumbled upon a box of leftover copies of this album and sold them on their website. The response was great, and led to a digipack CD reissue in 2004 including both CD and 7" from the original package, plus an alternate version of "Troll" from the original sessions.

3. The French L (Raphaële Lannadère) is a singer-songwriter who released her first ep "Première Lettres" in 2008. She is currently touring France. More information on her MySpace (www.myspace.com/lmusique)

4. Los Angeles based darkwave/ebm/industrial project first releasing music in 2020: https://lmusicofficial.bandcamp.com/
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