Scala & The Kolacny Brothers are awesome. Some of their other songs are amazingly well done, my favourites being their versions of Schrei nach Liebe[1], The bitter end[2], Engel[3], and I touch myself[4].

Though I especially like Regi Penxten feat. Scala - I fail[5] an awesome mix between Scala's choir singing and Regi Penxtens dance/trance.

[1] http://www.youtube.com/watch?v=h9ZJcP5EDIQ

[2] http://www.youtube.com/watch?v=wpsroKKLapw

[3] http://www.youtube.com/watch?v=NsGy-A5SOPU

[4] http://www.youtube.com/watch?v=uZ5VNXIiv1c

[5] http://www.youtube.com/watch?v=3mRwX7PGi9E (EDIT: the live version is more awesome)

No accounting for taste I guess. Maybe it's just because I'm such a fan of the original but I find this cover awful.

I preferred the 'OK Computer' cover by Clojure and 'Kid A' cover by Haskell.