Gary, unfortunately to me the term karaoke singer has a somewhat negative ring to it, I guess like 'one man band' or 'arranger keyboard player' might have to some others, so I felt he was more than a "much better than average karaoke singer" ...
I knew he wasn't singing with a live Orchestra but I just concentrated more on how he delivered the song than what his backup music was ...
Just semantics, I guess ...
And I agree, Jenna is very good ... the problem with doing a cover of a Whitney Houston song is that any comparison is going to fall short because there IS only one Whitney Houston ...