I didn't find any thread like this, so I created one ^_^ If you listen to the duo, here you can discuss their music, and if you don't, then you should start listening to them.
From last.fm:
ALI PROJECT is a Japanese duo with a strong Gothic Lolita image, consisting of Arika TAKARANO (宝野アリカ TAKARANO Arika) (vocals & lyrics) and Mikiya KATAKURA (片倉三起也 KATAKURA Mikiya) (music & arrangement).
They made their debut in the charts back in 1988 as Ant Project (蟻プロジェクト Ari Purojekkuto) with their album Fantastic Garden (幻想庭園 Gensō Teien).
Four years later, in 1992, they changed their name and made their major debut with the single Fall in Love, Maiden (恋せよ乙女 Koiseyo Otome).
Most of their records are released by Toshiba-EMI, Victor Entertainment and Tokuma Japan.
Nowadays their records are released by Mellow Head.