Dolly Kei is a very interesting trend in Japan, and one of which Courtney Love is a fan. The desrciption of the look is very vauge. Wearers take inspiration from old Eastern European traditional dress, fairy tales, and other whimsical sources. Dolly Kei, also called Cult Party, is a style I imagine on Claudia in Interview with the Vampire (my favorite book :). The layers, mostly white dresses, and romantic accessories have a certain dark appeal, like Hans Christian Andersen fairy tales. Tattered hems, and ripped lace bring to mind a vampire who has been entombed for centuries. If I were the singer in some orchestral, goth band (Apocalyptica, Nightwish) this is how I would take the stage.
photos and info from www.dollykei.tumblr.com