I am adding Pat Benetar, to Heart as two singers that should not be done on these shows. There are probably others for different reasons, but that was a real mess for me (for you)
Celine and Whitney should be avoided too. I don't care for Celine but most singers screw up her stuff.
Alex...I like him if I don't watch him. I get anxious when I do . that pee pee dance just makes me tense.
Caleb almost did soft. I wonder if he can. I feel like he should be able to. I'd kind of like to hear him do a song from The Commitments. He could do that blues shouter thing well.
I liked Jessica's third song.
I was never a huge or even medium fan of Elvis , although I like him a bit better now that I'm old, but I didn't adore that. It was ok.