Madonna - I'm sure she respects her but doesn't think about her much
Celine - Likes her, Celine gave her advice when she was trying to conceive and Mariah sent some kind thoughts after Rene's death
Janet - Mariah is a fan
Michael - Come on now
God I hope not...all her stans would lose respect for her if she actually listen to Metal.
I don't know about metal but she does listen to rock. :P I'm trying to find that video of an interview with Courtney Love that said Mariah listened to her music and was a fan.