the concert.. will i get to go or not?

i didn't have anyone to go with me to the metallica concert when they come on the 13th to minnesota, then one night i was thinking of people and my friend misty came to mind. i finally got to ask her today if she wanted to go to the metallica concert with me because i seen her at the grocery store and my grandma could never get ahold of her because she lost her cell phone. she said that she'd go with me and she just needs to call my grandma and get it all arranged. this would be the first concert that i've went to, so i hope that everything works alright. i didn't think that she'd be able to go with me and i was planning on asking the supervisor (of the program that i live in) if she would go with me because i thought that misty was so busy and that's why she never got back to my grandma. now, all i need to do is actually go to the concert.. cross my fingers.