From the age of 12 my DD started liking rock music, just the usual stuff that everyone else liked but for the past year or so she's moved onto much heavier, darker music, she's been listening to White Zombie, Metallica etc and she seems to have changed, her friends have changed and she's hanging around with older poeple, mostly male student types, she's going to metal gigs, dressing in metal stuff, horrible makeup and her old friends are having nothing to do with her. She saved up half of the money towards a guitar and I paid the rest since she impressed me with her ability to play and she chose one with a spider web design all over it and has now joined a black metal band where again she is the only girl.
I know they all go through phases but she is alienating herself, changing herself completely and I am concerned.
Am I over-reacting?