Music Sung with Passion

I heard Diana Krall sing Bob Dylan's 'A Simple Twist of Fate' last week on the radio. As NPR would call it, I had a driveway moment. I downloaded it to play for my wife. She absolutely loved it, but when I asked her if Diana sang it with the passion Bob did her answer was no.

She thinks that A Simple Twist of Fate was actually written by Joan Baez which I wouldn't be surprised if she's correct. No Google for this post.

My question is, do you think all artists sing with passion? It's hard for me to hear the passion in Dylan's voice on A Simple Twist of Fate yet I actually hear it in Diana Kralls voice for some reason. Can an artist write a song and then perform it without passion?