Wonderfully great tomato soup http://definingaudacity.com/wonderfully-great It worked in the Christian Bible... 2nd chronicles chapter 2 verse 9 for the house which I am about to build shall be wonderful great; as to its structure and ornaments.

I would say avoid using this expression as, although it's not wrong, it is not 'standard' English. You can say ' . . such a wonderful singer' or ' . . such a great singer', or another similar expression e.g. ' . . such a fantastic singer'.