Songs in which the singer purposely alters his voice (more explanation follows)

Cafe Society
61

I’m not sure if this counts your criteria, but Axl Rose has two separate voices and combines them in certain songs. “Patience” is a good example of this.

62

“Avenging Annie” by Andy Pratt

63

Oops my bad

Declan

64

De-Lite “Groove Is In The Heart”

I couldn’t ask for another