She also wore that in an early hit machine performance (
http://vdb.alizee.cz/browse.php?nid=132). I like it. It's based on the outfit a Lolita-ish character wore in a French movie, the name of which escapes me at the moment. I can look it up as soon as AF is back online. The dialogue in the Moi Lolita music video, the stuff about paying back the money, is also lifted from there. In the movie, the girl means that she'll "repay" the guy by sleeping with him once she's older.