My mom wont let me go to a concert?

im 17 and i want to go to a chris webby rap concert and its in a small bar. it is open to all ages and its not like there going to be serving drinks to me. she thinks ill do some drugs there, but i only drink and im not going to drink there. i get good grades and she is a really chill mom except for when it comes to drugs and drinking and it pisses me off. im going to be in denver and i live in va, but im staying with my grandma, so im not going to come back to her house all ****** up. its also a mile away. my mom wants my aunt or uncle to go, but i dont want to drag them to a rap concert. do you think i deserve to go?