http://www.youtube.com/watch?v=btr0bK7q49c The main singer of the band, Zhanna Friske, is the same one who played Alisa. As for "soundtracks" you mentioned... well, long story short, don't trust them much. There were albums that were marketed as "Night watch" soundtrack but mostly contained songs not related to the Night Watch movie (those familiar with the book series, though, may note similarities with repertoire in Anton's music player).
I have Blestyaschie's greatest hits CD...Ay ya vsyo letala is one of my favorite songs on it.
Zhanna went solo after she left Blestyaschie and did two or three solo albums, but I don't have them.
Because of the books I have discovered a few other Russian bands and got their CDs as well and love it.
Zemfira is one of my favorite singers and the band Piknik...a Russian goth band...is fab. Have all of both their albums.Not sure if Piknik do any more albums though since the keyboard player died :(
I'm a giddy pony-they feed me cupcakes because they taste of sunshine & happiness