Innocently listening to the local radio as I work, I heard the version of "Go to Sleep Little Baby" from the O' Brother Where Art Thou?" soundtrack.
The thereminist in me caused me to cock my ear in the direction and focus my attention - yes, that IS a theremin floating around in the back there!
It became very obvious about 1:45 or so -this version is terrible. Whatever-it's a great excuse to watch that film again! http://www.youtube.com/watch?v=wK6Jb9_rpdg