"His name was King" singer

Was actually Edda Dell’Orso the singer of “His name was King”?
Can’t find any bad italian accent in that piece.
And I thought she was specialized in howls, moans and groans.

Title song is sung by Ann Collin.

Is that a wrong credit then?

http://wiki.tarantino.info/index.php/Django_Unchained_Soundtrack

Is that a wrong credit then?

It is indeed.

The confusion may lie in that Edda Dell’Orso voice is used on one of the instrumental versions of the main title theme according to Soundtrack collector and just listened to the track and does sound like her.