[Yello] Who sings in 'Monolith'?

There is nice choir and chant in russian (?) in 'Monolith' from 'Pocket Universe'. Anyone knows who sing it? Or maybe it's only Boris? -- == muzyczno-kulturalny blog marcolphusa ==== http://www.markolf.org == == http://members.tripod.com/markolf ==== complete fluke discography ==