If this is "Troll Spawn" it's a good one! You all looked!

In case any of you have forgotten:

#1, James Taylor!

Clint Eastwood, Billy Boy Shatner, Loren Greene, etc. do what might be called "parlando". Although I believe the term was meant to apply to someone who could really sing and when they came to the part so marked they spoke the word(s), possibly as an iteration of the previous word or as an interlude as in Jan and Dean's "Deadman's Curve"!

Yes:
Frankie Valli
Mariah Carrie
Tammy Whine-ette
Bob Wills (remember him?)
Michael Bolton
Pat Boone
Pat Boone's daughter
Me
The guy who sang "Swinging" (CW)

I'm sure a lot of the newer singers who were named were just as awful or more so but I haven't heard them and don't plan to in the near future. Have fun with this.